Abstract: A high temperature brazing fixture and method of manufacture for a gas turbine component made of a superalloy is disclosed herein. The high temperature brazing fixture includes a first and second frame member, a support member, and positioning member, all of which are made from the superalloy and fastened together using tab and tab lock couplings. The support member is configured to interface with and support the gas turbine engine component, and the positioning member is configured to interface with and position at least a first location of or hold a first dimension of the gas turbine component.

Abstract: A method is provided for bonding a semiconductor chip to a packaging substrate while minimizing the variation in the solder ball heights and controlling the stress in the solder balls and the stress in the packaging substrate. During the solder reflow, the warp of the packaging substrate, including the absolute warp, thermal warp, and substrate to substrate variations of the warp, is constrained at a minimal level by providing a clamping constraint to the packaging substrate. During cool down of the solder balls, the stresses and strains of the solder joints are maintained at levels that do not cause tear of the solder joints or breakage of the packaging substrate by removing the clamping constraint. Thus, the bonding process provides both uniform solder height with minimized solder non-wets and stress minimization of the solder balls and the packaging substrate.

Abstract: A system and method for manufacturing that provides for adjustable support of work pieces such as printed circuit boards includes an edge rail system having first and second edge rails, with at least one of the edge rails being adjustable, allowing the width of the system to be adjusted to accommodate various widths of work pieces. It also includes a set of support strips for supporting a lower side of the work pieces and a means for dynamically adjusting spacing of support strips to adjust to the width of the edge rail system.

Abstract: An example diffusion bonding machine includes a support structure configured to receive first and second die sets. A heat transfer device is arranged near the support structure and is configured to transfer heat relative to the die sets. A mechanism is configured to separate the die sets from one another during heat transfer. In one example method of diffusion bonding, heat is transferred relative to a space between die sets. The die sets are supported on the support structure, and a load is applied to the die sets to diffusion bond a component within each of the die sets.

Abstract: A method of repairing an integrally bladed rotor includes the steps of placing a support collar around at least a leading and trailing edge portions of the blade stub, and performing linear friction welding to add a replacement airfoil to the blade stub. The linear friction welding is generally along a direction between the leading and trailing edges. In addition, the support collar leading and trailing edge portions are connected together.

Abstract: A welding jig for ensuring concentricity of an interior surface of a pipe with a circular outer periphery of a bolting flange thereon, comprising (i) a frame member; (ii) two spaced-apart rollers positioned at one end of said frame member, each adapted to remain in contacting engagement during welding with said circular outer periphery of said bolting flange; and (iii) a chill block, having a convexly-curved outer surface of a curvature corresponding to a desired inner diameter of said pipe, adapted to be positioned proximate said interior surface of said pipe. The rollers permit translational movement of the chill block about a center point of said pipe flange when the welding jig is placed on the pipe flange, to permit uniform diametrical deposition of weld material on said inner diameter of said pipe flange. A method of making a pipe is further disclosed and claimed.

Abstract: A manufacturing equipment for manufacturing an LED light bar includes a reflow oven and a clamping device. The LED light bar includes a printed circuit board and a plurality of LEDs arranged on the printed circuit board. The reflow oven includes a hearth box and a transmitting belt extended through the hearth box. The hearth box includes a heating area and a cooling area in an interior thereof. The clamping device is mounted on the transmitting belt. The clamping device defines a receiving space for receiving the LED light bar therein. The clamping device is changed between a clamping state for maintaining the LEDs in positions and a releasing state whereby the LED light bar can be removed from the clamping device.

Abstract: An apparatus for fitting two first workpieces with respective second workpieces of different dimensions has a track extending longitudinally through an assembly station and a welding station. An assembling appliance in the assembly station has a pair of jigs each dimensioned to fit with a respective one of the second workpieces, and a holdown appliance in the welding station similarly has a pair of differently sized holddowns. The holddown appliance can move between a pair of positions in each of which a respective one of the holddowns is aligned under the welding head. A workpiece holder in which either of the first workpieces can be held is shiftable between positions in the assembly station under the assembling appliances and a position in the welding station underneath a stationary welding head therein.

Abstract: Methods, systems, apparatuses, and products are disclosed for welding ground wires to a grounding rod. A jig retains the ground wires to the grounding rod. The jig has a first horseshoe oriented to a second horseshoe to form a crucifix. Each horseshoe has a pair of legs supporting the jig from earth and providing electrical ground to the earth. A central passage bisects each horseshoe through which the grounding rod inserts. Means are included for clamping a ground wire to at least one of the legs, such that the ground wire is retained for welding to the grounding rod.

Abstract: According to the invention, a shell handling carriage (19) is provided with grippers (194) which grip the end edges of a shell (2) made of composite material still fixed to a molding drum (11). An expeller strut (13) prevents the drum (11) from moving while the carriage (19) translating 5 removes the shell (2) from the drum (11). The shell (2) is then transported by the carriage (19) to a working station in which robots rivet the transversal ribs on it. The transversal ribs reach the robot working position orderly arranged on a self-moving rib store, which is inserted in the shell (2) itself.

Abstract: A compression-bonding apparatus includes a support stage and a pressing tool. The pressing tool includes a pressing stage, an elastic member and a plurality of bonding heads. The elastic member is held by the pressing stage. The plurality of bonding heads includes an upper surface attached to the elastic member and a lower surface facing an upper surface of the support stage.

Abstract: A device for aligning structural elements to be connected is presented. In particular, the present invention relates to providing an end of a first structural element and an end of a second structural element; providing an aligning device including a head configured to be removably secured proximate the end of the first structural element, the aligning device further including an alignment element attached to the head, the alignment element having a rotatably secured plunging body extendable from the head; extending the plunging body from the head to non-rotatably engage the second structural element; and moving the non-rotatably engaged second structural element via extension of the plunging body to align the end of the second structural element with the end of the first structural element.

Abstract: A one-sided spot welding device having a concentrically arranged weld electrode assembly and an electromagnet for clamping together and holding metallic parts during a one-sided spot welding process. A device of the present invention may include a mounting base having a central weld electrode and an outer, concentrically arranged weld electrode extending therefrom. The outer weld electrode may surround or partially surround the central electrode, with some gap therebetween. The central electrode is associated with an actuator that is provided to press a tip of the central weld electrode against a metal component to be welded. An electromagnet resides between the central and outer weld electrodes of the electrode assembly to draw metal components into tight abutting contact and to hold the components in contact with the outer weld electrode during welding.

Abstract: A welding jig for ensuring concentricity of an interior surface of a pipe with a circular outer periphery of a bolting flange thereon, comprising (i) a frame member; (ii) two spaced-apart rollers positioned at one end of said frame member, each adapted to remain in contacting engagement during welding with said circular outer periphery of said bolting flange; and (iii) a chill block, having a convexly-curved outer surface of a curvature corresponding to a desired inner diameter of said pipe, adapted to be positioned proximate said interior surface of said pipe. The rollers permit translational movement of the chill block about a center point of said pipe flange when the welding jig is placed on the pipe flange, to permit uniform diametrical deposition of weld material on said inner diameter of said pipe flange. A method of making a pipe is further disclosed and claimed.

Abstract: A pressure-applying device for use with a welding apparatus includes an annular collar, a housing component, a pressure foot, and a motor. The housing component is coupled with the annular collar and selectively rotatable relative to the annular collar. The pressure foot is at least partially located in the housing component and has a discontinuous contact surface for contacting a work piece and has a central opening for accommodating a welding tool, the discontinuous contact surface may have a first and second contact surface that are respectively disposed on substantially opposing sides of the central opening. The motor is coupled to the housing component and is configured to rotate the housing component with respect to the annular collar.

Abstract: This metal lip seal capable of ensuring tightness between two elements includes: two resilient members each intended to be accommodated in a cavity of one of the two elements, said cavities being located in line with a zone of engagement of the two elements one with the other in which tightness is desired; and a flexible body secured to the element receiving the resilient members, provided with two free ends, said free ends extending at least in line with said engagement zones and being in contact with the resilient members. Each of the resilient members is capable of exerting a contact force on the free ends in order to ensure tightness between the two elements.

Abstract: A fastening device and method for mounting equipment to a framing member. The invention includes a single breakaway fastener that is pretentioned using a biasing member to fracture on a predetermined force applied to the fastened joint to avoid damage to the secured equipment. In one example the device and method includes the fastener having a reduced diameter portion that is positioned between an annular plate and the framing member.

Abstract: A soldering jig is disclosed. The soldering jig in accordance with an embodiment of the present invention includes: a mounting block having a plurality of accommodation holes penetrating from one surface to the other surface thereof, a plurality of soldered objects being accommodated in the plurality of accommodation holes; a first cover block coupled to one surface of the mounting block and having a support part configured to support the plurality of soldered objects accommodated in the plurality of accommodation holes; and a second cover block coupled to the other surface of the mounting block and having a plurality of pressing protrusions protruded to face the plurality of accommodation holes, respectively, to elastically support the plurality of soldered objects. Accordingly, a Gunn diode package that is soldered in a uniform quality can be obtained by maintaining a uniform pressure and heat transfer to the soldered objects in a soldering process.

Abstract: A joining jig 5 is constituted of a pair of flat-plate sandwiching portions 17, 18 including sandwiching faces 15 which sandwich therebetween a plate member laminate 4 prepared by laminating two plate members 2, 3 with providing a solder on a joined face between the plate members. The joining jig has a plurality of vapor inflow ports provided in the sandwiching face 15 so that surplus solder vapor on the joined face flows into the vapor inflow ports in a case where the plate member laminate 4 is heated while sandwiching the plate member laminate between the pair; vapor flow paths provided so that the vapor flow paths communicate with the vapor inflow ports; and vapor discharge ports 42 provided in the side surface of the joining jig so that the vapor discharge ports communicate with the vapor flow paths to discharge the vapor of the solder to the outside.

Abstract: A wire bonder comprises a bonding tool for forming wire bonds and a pneumatic device for feeding wire to the bonding tool. An upper clamp and a lower clamp are aligned along a wire feeding route between the pneumatic device and the bonding tool to clamp the wire at respective clamping points. A fixed intermediate guiding chamber extends substantially from the upper clamp to the lower clamp. The said intermediate guiding chamber encloses the wire along the wire feeding route and is operative to shield and guide the wire.

Abstract: An assembly for positioning a structural assembly for friction stir welding, and a system and method for friction stir welding the structural assembly are provided. The assembly includes a frame defining an aperture therein, and at least one structural member positioned within the aperture. The assembly also includes at least one spacer positioned within the aperture such that the spacer and structural member substantially fill the aperture to secure the structural member within the frame, as well as a substrate secured to the frame and positioned adjacent to the structural member in an overlapping configuration to define an interface between the substrate and structural member. In this configuration, the substrate and structural member are capable of being friction stir welded together.

Abstract: An automatic soldering apparatus and a soldering method thereof are provided. The soldering method has steps of: (S1) positioning a to-be-soldered part and an electronic component having a solder material; (S2) driving a hot press to firstly move, until the hot press is in contact with the part; (S3) heating the solder material by the hot press; and (S4) driving the hot press to secondly move to press the solder material after the solder material on the electronic component is melted, so as to connect the part to the melted solder material on the electronic component by soldering. When the automatic soldering apparatus and the soldering method of the present invention are used to execute a soldering process, a route of the hot press can be controlled to firstly melt the solder material and then deform it, so as to avoid the hot press from impacting and damaging the part.

Abstract: A bonding apparatus for bonding substrates having metal bonding portions, includes: a processing container having an opening formed on the bottom of the processing container; a thermal treating plate disposed within the processing container, the thermal treating plate allowing for substrates to be mounted thereon and allowing for thermal treatment of the substrates; a pressing mechanism disposed within the processing container opposite the thermal treating plate and which presses the substrates to the thermal treating plate; an annular supporter which is disposed in an inner side of the processing container along the opening of the processing container, the annular supporter providing an airtight seal between the processing container and the thermal treating plate, and supporting the thermal treating plate; and a cooling mechanism which is disposed in an inner side of the supporter below the thermal treating plate, the cooling mechanism cooling the thermal treating plate.

Abstract: A bonding apparatus includes a thermal treating unit and a bonding unit that are integrally bonded together. The thermal treating unit includes a first thermal treating plate for supporting and thermally processing a superimposed substrate. The bonding unit includes a second thermal treating plate for supporting and thermally processing the superimposed substrate processed in thermal treating unit, and a pressing mechanism for pressing the superimposed substrate against the second thermal treating plate. The first thermal treating plate includes a cooling mechanism for cooling the superimposed substrate placed on the first heating plate. Each unit can depressurize the internal atmosphere to a specified degree of vacuum. The thermal treating unit has a plurality of carrying mechanisms for conveying the wafers between the two units.

Abstract: A system for automated assembly and welding is disclosed. The system includes a pallet for receiving incoming workpieces; a workpiece holder having a plurality of electromagnets; a handling robot configured to transport incoming workpieces from the pallet to the workpiece holder; and a controller in communication with the workpiece holder and the handling robot. The controller is configured to determine an orientation of a workpiece positioned on the workpiece holder, and to selectively adjust an activation state of one or more electromagnets of the workpiece holder based upon the orientation of the workpiece. A method of assembling and welding workpieces is also disclosed.

Abstract: A device and method for joining and tacking several individual components independently of shape and/or size to form inherently rigid, transportable sections for transportation vehicles, such as an aircraft is disclosed. According to one embodiment of the invention, the individual components may be spatially positioned relative to each other independently of shape and/or size. The spatial positions of the individual components may be determined by a measuring device, such as a laser measuring device, and varied via several positioning devices until a preset spatial position of the individual components has been reached in which the individual component are tacked together to form a section. In another embodiment, the positioning devices may be designed as base positioners, a first lateral positioner, a second lateral positioner, an upper positioner as well as an inner positioner.

Abstract: A method of splicing a trailing end of a downstream metal strip to the leading end of an upstream metal strip. The method has the steps of overlapping the leading end of the upstream strip with the trailing end of the downstream strip, and thereafter friction welding the overlapping ends together at a plurality of spots at which respective spot welds are thereby formed.

Abstract: A motor vehicle car body framing apparatus for use at a welding station, the apparatus including a gate having a frame structure and a plurality of tooling members carried by the frame structure for use in positioning components of the vehicle body at the welding station for welding. The tooling members are mounted on the frame structure by a plurality of mounting brackets. Each mounting bracket includes a base member mounted on the frame structure and a riser mounted on the base and mounting a respective tooling member. The riser is fixedly mounted on the base by a single central fastener bolt which may include a reduced diameter portion sized to break away in response to predetermined impact against the riser. Each mounting bracket further includes means defining a triangulated mounting interface between the base and the riser arranged in concentric relation to the fastener bolt.

Abstract: A wire alignment tool for use during soldering is disclosed. The tool includes a handle configured to contain a supply of solder, a solder advancement mechanism constructed and arranged to move the supply of solder from the handle to a soldering locus, and a clamping mechanism constructed and arranged to maintain two or more wires to be soldered at the soldering locus.

Abstract: A method of forming a metallic container by placing body and lid portions together, keeping parts of the body and lid portions in contact with one another, and vibrating the lid with respect to the body, thereby generating frictional heat to form a friction metallic weld therebetween. Apparatus for attaching the lid and body portions of the metallic container includes a body supporting base, an assembly to support a flange of the body, a sonotrode to contact a flange of the lid so that wherein the flanges of the lid and body are held together between the support assembly and the sonotrode. A motor vibrates the sonotrode relative to the support assembly to thereby move the flanges relative to one another generating sufficient frictional heat to create a friction metallic weld therebetween.

Abstract: An alignment tool determines the parallelism between the anvil face of an anvil of an ultrasonic welder and the horn faces of a replacement horn mounted on the welder by a rotary mount. The tool includes a tool base having a face plate contacting with the anvil face and a clamp for clamping the tool base on the anvil. A plate member is mounted on the tool base for swiveling movement and contacts the horn faces. Springs urge the plate member into contact with the horn faces while the replacement horn is rotated relative to the anvil. Transducers sense the relative positions between the face plate and the plate member so that the repairman can determine that the replacement horn has been rotated to the desired position in which the horn face has become parallel with the anvil face. Then the replacement horn can then be tightened against further rotation.

Abstract: A motor vehicle car body framing apparatus for use at a welding station, the apparatus including a gate having a frame structure and a plurality of tooling members carried by the frame structure for use in positioning components of the vehicle body at the welding station for welding. The tooling members are mounted on the frame structure by a plurality of mounting brackets. Each mounting bracket includes a base member mounted on the frame structure and a riser mounted on the base and mounting a respective tooling member. The riser is fixedly mounted on the base by a single central fastener bolt which may include a reduced diameter portion sized to breakaway in response to predetermined impact against the riser. The interface between the riser and the base comprises a plurality of contact points arranged in concentric relation with respect to the fastener bolt.

Abstract: A manufacturing apparatus (2) for components (3), which has at least one movable loading station (20) designed as a tool magazine (13) and having reception points (39) with different tools (4, 5, 6, 7) for different component types A-I. The loading station (20) is connected to one or more machining stations (20, 22?) at which at least one machining device (23) and at least one handling device (24) for handling and releasing the components (3) from the tool (4, 5, 6, 7, 8) are arranged. The selected Figure is FIG. 5.

Abstract: Adjustable, elongate, beam-offset jig structure for assisting, under manual, or appropriate computer, control, in welding a pair of beam-end, column-interface components to the opposite ends of an elongate beam. The jig structure includes spaced, adjustable head-stock and tail-stock structures, each capable of holding such a component adjacent a beam end for adjustment to an infinite number of different, pre-weld angular-offset dispositions relative to such a beam end in order to accommodate planned horizontal and vertical beam offsets which will be encountered when such beams are installed in a building frame. A computer-controlled, robotic welder may be provided adjacent each end of the jig structure to implement appropriate welding when any and all offset angles have been jig-established.

Abstract: An apparatus for attaching the lid and body portions of a metallic container includes a base to support the body, a support assembly to support a flange of the body, and a sonotrode for contacting a flange of the lid, wherein the flanges of the lid and body are held together between the support assembly and the sonotrode. A motor reciprocally rotates the sonotrode relative to the support assembly, thereby moving the flanges relative one another to generate frictional heat and create a friction weld therebetween.

Abstract: A cold weld is formed in a multilayer material. A first pin is coupled to a first block. A second pin is coupled to a second block. The multilayer material is disposed between the first pin and the second pin. The first pin opposes the second pin. The multilayer material is held in the XY plane and floats in the Z axis.

Abstract: In a Friction Stir Welding process a load, applied through a rotating tool, frictionally heats, plasticizes and commingles selected regions of the workpieces while translating along the length of the joint. The load is supported by an anvil. The applied load inhibits relative motion of the workpiece and conventional anvils due to friction which requires application of higher translation forces and could lead to undesired surface blemishes. Thus conventional practice is to employ bulky, stationary anvils. Compact, moveable anvils comprising freely-rotating or freely moving elements in contact with the workpieces and capable of reducing workpiece-anvil friction are described. Particular benefits of this anvil design are illustrated for the process of assembling inner and outer sheet metal components into an automobile assembly, a portion of which is visible to a vehicle customer.

Abstract: The invention relates to a device (100) for the connecting of strips to an endless strip with a clamping arrangement (110, 120) with a clamping device (110-r, 120-r) on the inlet side and a clamping device (110-l, 120-l) on the outlet side, a cutting arrangement (155) with an upper cutter (150) and a lower cutter (130) and with a joining arrangement, in which at least the clamping device (110-r, 120-r) on the inlet side and/or the clamping device (110-l, 120-l) on the outlet side is constructed as a premountable unit.

Abstract: Embodiments of tool mounted structural positioning devices and techniques are described. In one embodiment, a positioning device includes mountings to mount the device directly to a tool device configured to travel a path and perform a manufacturing operation on an element. Engagement mechanisms coupled to the positioning device are aligned to the predefined path and are configured to exert a clamping force upon the element such that the element is secured and positioned by the positioning device in constant relation to the predefined path as the operations are performed.

Abstract: Welding equipment for performing butt welding on a plurality of blank components B butted against each other includes positioning stations 4 and 6 for positioning the individual blank components, a welding station 2 having a welding head for welding the blank components together, and first and second tables 10 and 12 movable between the welding station 2 and the respective positioning stations 4 and 6. When the first table 10 is moved to the positioning station 4, the second table 12 is moved to the welding station 2, and when the first table 10 is moved to the welding station 2, the second table 12 is moved to the positioning station 6, so that the multiple blank components may be welded together by the welding head to obtain a finished article.

Abstract: A clamp (2) for soldering devices (1), such as a soldering iron (17) or a soldering gun (16). The clamp has a proximal lever (5), a curved center portion (3) and a distal tip (4). The clamp is attached to the soldering device via a rotational attachment means (12), such as pivot points (13), so that when a user applies downward force to the lever of the clamp the tip of the clamp presses upward towards the tip of the soldering device, thereby allowing the user to hold multiple wires between the tip of the clamp and the tip of the soldering device. A spring (10) located in-between the clamp lever and the soldering device keeps the tip of the clamp and tip of the soldering device separated when pressure is not being applied to the lever of the clamp.

Abstract: A welding torch maintenance center that uses a microcontroller to control the operation, to configure the maintenance center, to repeat the reaming process for excessive spatter deposit inside the nozzle, to spray the nozzle with anti-spatter fluid, to cut the welding wire, to provide a tool center point check signal, and to provide diagnostic information.

Abstract: A solder material overflow preventive metal plate member fixation device installation method includes the step of preparing a barrel and inserting the barrel into a mounting through hole on a metal plate member to abut a bottom bonding surface of the barrel against a solder material at the metal plate member, the step of press-fitting a solder mask insert into the barrel to keep the solder mask insert in flush with the bottom edge of the barrel for stopping a solder material from flowing into the barrel, the step of bonding the barrel to the metal plate member through a soldering process, and the step of removing the solder mask insert from the barrel after the soldering process.

Abstract: An assembly for positioning a structural assembly for friction stir welding, and a system and method for friction stir welding the structural assembly are provided. The assembly includes a substrate defining a recessed pattern therein, and at least one structural member positioned within the recessed pattern to at least partially secure the structural member therein. The structural member is positioned adjacent to the substrate and within the recessed pattern such that the substrate and structural member are formed of materials capable of being friction stir welded together.

Abstract: The present invention relates to a method for welding at least one foil in a packaging process using a welding assembly, comprising the steps of directing the foil into the welding assembly, holding the foil in at least one holding point of the welding assembly, welding the foil in at least one welding point of the welding assembly, and where a part of the foil is accumulated between the at least one holding point and the at least one welding point prior to welding the foil in the welding point. The present invention further relates to a welding assembly employing this method.

Abstract: A receiving element which can be introduced into a borehole of at least one component includes a bolt presenting an outer surface that is approximately parallel and advantageously coaxial to a longitudinal axis of the bolt. The receiving element requires few materials and can therefore be produced at a low constructional cost while being provided with high dimensional stability and positioning accuracy. The bold includes an abrasion-resistant sintered material, and a metal tip provided on the front end of the shaft. The end part of the tip is engageable in a recess of the bolt, and there is a direct connection between the end part and the recess in the connection region on the front end of the bolt.

Abstract: The present invention refers to an apparatus and method that allows manufacturing of steel poles and honeycomb columns. It consists of placing previously cut strips of steel in vertical position with a set of top and bottom clamping devices to form a steel tapered pole. The strips of steel are welded together, to form a steel pole or honeycomb column, with a slideable welding device mounted on a ascending and descending moving welding platform. The moving welding platform moves to the top position, the top clamping device is liberated and the finished pole or honeycomb column is tilted 90 degrees to the front of the machine by a hydraulic cylinder that tilts the extraction platform. The finished pole or honeycomb column is positioned in the extraction bed and the bottom clamps release the pole.

Abstract: A method for producing a longitudinally welded hollow profile from a sheet metal blank having defined longitudinal edges, in which the sheet metal blank is initially preformed into an open seam profile with the aid of at least two tool parts allows for the economical production of accurately formed hollow profiles. This is achieved in that to produce the open seam profile, the sheet metal blank, by a change in the relative position of the tools parts, is placed freely around a mandrel positioned between the tool parts and extending in the longitudinal direction of the sheet metal blank, the outer shape of which mandrel determines the inner shape of the hollow profile to be produced, and in that the shaping of the open seam profile obtained is then completed in one or more stages in each case by a further change of the relative position of the tool parts.

Abstract: A compression-bonding apparatus includes a support stage and a pressing tool. The pressing tool includes a pressing stage, an elastic member and a plurality of bonding heads. The elastic member is held by the pressing stage. The plurality of bonding heads includes an upper surface attached to the elastic member and a lower surface facing an upper surface of the support stage.

Abstract: A wire clamp includes a pair of clamp arms at a predetermined distance from each other to define an interval therebetween for a bonding wire, a clamp body coupled to the clamp arms, the clamp body configured to adjust the predetermined distance between the clamp arms with respect to a process to be performed, a clamping section in each clamp arm, the clamping section having concave portions facing the interval between the clamp arms, the concave portions being configured to contact the bonding wire when the clamp arms are brought close together, and at least one abrasion prevention member in each clamping section, the abrasion prevention members being configured to prevent abrasion during contact with the bonding wire.