Abstract: In a boring tool with a coolant hole, a spray opening of a coolant hole formed in a shank is positioned with a radial offset from the shank center toward the side on which a cutting tool is formed. The spray opening is sloped at an angle of 0 to 10 deg from an axial center of the shank toward a cutting edge. Also, the spray opening is positioned so that a distance from the cutting edge to the opening is up to three times the shank diameter.

Abstract: A ball endmill having (a) a cylindrical tool body and (b) ball-nosed end cutting edges each of which includes (b-1) a first portion provided by a radially inner portion of each ball-nosed end cutting edge, and (b-2) a second portion provided by a radially outer portion of each ball-nosed end cutting edge. The first portion is defined by a circular arc which is convex in a direction of rotation of the tool body and which has a first radius of curvature as measured in a distal end view perpendicular to the axis. A ratio of the first radius of curvature to an outside diameter of the cylindrical body is not smaller than 0.025 and not larger than 0.10. The second portion is defined by a circular arc which is convex in the direction of the rotation of the tool body and which has a second radius of curvature as measured in the distal end view. The second radius of curvature is larger than the first radius of curvature.

Abstract: A hand held drill leverage unit for supporting, positioning, and leveraging a drill. The leverage unit has a main lever arm pivotally supported by a fulcrum unit. A drill end of the lever arm supports the drill, while an opposing, longer, handle end of the lever allows manipulation of the lever arm to control the position of, and to leverage, the drill. A user typically grasps the drill handle in one hand, the handle end of the lever arm in the other. Pulling the handle end away from the workpiece forces a leg or foot member of the fulcrum unit against a rear side of the workpiece or of another support member, making the fulcrum unit substantially stationary relative to the workpiece, so that further pulling of the handle end forces the drill end toward the work piece. As the preferred leverage unit need not be fastened or fixed to the workpiece or other support member, the user may quickly and easily move the drill and leverage unit to multiple drilling locations.

Abstract: There is now provided a twist drill and a method for producing a twist drill which method includes forming a flute of a twist drill. The drill has drill material and a tip portion with a cutting lip. The drill has a land structure and a flute to remove chip residue. The land structure has a flute wall and a cutting edge structure that is disposed longitudinally along the flute wall. The cutting edge structure has a first portion at the drill tip portion and a second portion disposed away from the drill tip portion. The flute wall extends further into the land structure at the second portion of the cutting edge structure than at the tip portion to provide a greater amount of drill material at the tip portion than at the second portion of the cutting edge structure.

Abstract: A cutting tool assembly includes a rotatable body having a hole and cutting means. A member having a hole is engaged with the hole of the body by an interference fit. A cutting insert is located within the hole of the member and engaged with the member by an interference fit, and the cutting insert extends from the member for cutting. A method provides a cutting tool assembly.

Abstract: A replaceable milling cutter head, which has an external envelope surface having a rotationally symmetrical basic shape in respect of a central axis. The cutter head includes a plurality of peripherally spaced-apart cutting edges and chip flutes, and two axially spaced-apart, front and rear ends. An axial hole extends all the way through a frame of the cutter head. The milling cutter head has a flat, pulley-like basic shape, such that the axial distance between the two ends thereof is at most half as large as the greatest outer diameter thereof. A hollow space for receiving a male element of a basic body is recessed in the rear end of the milling cutter head. The cross-section area of the hollow space, in a plane perpendicular to the center axis, amounts to at least 25% of the total cross-section area of the milling cutter head, as determined by the outer diameter.

Abstract: A milling cutter head in the form of a body, which has an external envelope surface having a rotationally symmetrical basic shape in respect of a central axis, and includes a plurality of peripherally spaced-apart cutting edges and chip flutes. The cutter head includes two axially spaced-apart ends in which hollow spaces open, which are arranged to receive male elements included in a basic body, and are spaced-apart by a partition wall in which a through hole is formed. The through hole mouths in bottom surfaces in the hollow spaces. The cross-section area of each individual hollow space, in a plane perpendicular to the center axis, amounts to at least 25% of the total cross-section area of the body, as defined by the greatest diameter of the envelope surface.

Abstract: There is provided a fastener able to prevent damage due to environmental factors such as ultraviolet rays, and impact from sanddust, lumps of ice, and raindrops without obstructing a flow of electric shock current that flows along a top surface of an outer skin. The fastener connects an outer skin of an aircraft to a structural member positioned inside this outer skin, and is provided with a dielectric layer arranged to cover one end surface of a head section, and a conductive layer arranged to cover one end surface of this dielectric layer.

Abstract: A foamed adhesive for the production of books, more preferably hard cover books. The adhesive is used in casing-in operations to attach end sheets of a book block to a hard cover.

Abstract: A folded portion flattening device has: a sheet conveying section that conveys a booklet of folded sheets in a predetermined conveyance direction with a folded portion ahead; a sheet stopper that stops the booklet conveyed by the sheet conveying section at a fixed position; a pair of booklet holding members that hold the booklet stopped by the sheet stopper by gripping the booklet at both faces of the booklet; a pressing member that presses the front end of the folded portion of the booklet held by the booklet holding members in an opposite direction to the conveyance direction, so that a curve at the front end of the folded portion is flattened to form a flat face; and a wrinkle preventing member that prevents wrinkle from being generated in the flat face when pressed by the pressing member.

Abstract: A folded portion flattening unit includes: a sheet conveyance unit that conveys a booklet including a folded sheet with a folded portion in a lead toward a predetermined conveyance direction; a sheet stopper that stops the booklet conveyed by the sheet conveyance unit at a predetermined position; a pair of booklet grasping members that clamp and grasp the booklet stopped by the sheet stopper at both faces of the booklet; a pressing member that flattens a curve at a front end of the folded portion being grasped by the booklet grasping members, by pressing the front end toward a direction opposite to the conveyance direction; and an opening amount setting unit that sets an opening amount of an opening portion between the pair of booklet grasping members, when the conveyed booklet is sandwiched between the pair of booklet grasping members.

Abstract: A combined baler/bale wrapper (1) comprises a chassis (5) on which a baler (10) and a bale wrapper (11) are mounted. The baler (10) comprises a stationary segment (18), a lower segment (19) and an upper segment (20) all of which carry bale forming rollers (25) which define a bale forming chamber (15) within which a round bale (2) is formed. The lower segment (19) and the upper segment (20) are pivotal about first and second pivot axes (35,40), respectively from a bale forming position (FIG. 5) to a discharge position (FIG. 1) for transferring a bale upwardly rearwardly from of the bale forming chamber (15) directly onto first and second bale supporting rollers (50) of the bale wrapper (11). The bale supporting rollers (50) rotate the bale (2) about a first wrapping axis (53) while a carrier ring (55) simultaneously revolves a pair of wrapping material dispensers (54) about a second horizontal wrapping axis (56) for dispensing wrapping material onto the bale (2) for wrapping thereof.

Abstract: The present invention generally comprises a transport system for transporting containers throughout a fabrication facility, and more specifically through a tool bay in the fabrication facility. The present invention generally includes a first container transport system for transporting a container from an interbay conveyor towards the first tool bay, a second container transport system for moving a container away from the first tool bay and a tool loading device to move containers between the first and second container transport systems and a load port. A merged return conveyor for transporting a container between the second container transport system and the interbay conveyor may also be included.

Abstract: The invention provides a wafer-handling method, system, and apparatus. In one embodiment, the invention provides a wafer-handling apparatus comprising: a clamping surface for securing a wafer; and a load lock sealing surface for forming an airtight seal with a load lock wall.

Abstract: A substrate processing apparatus includes a cassette placing table; a first transfer mechanism having a first substrate holding hand capable of advancing/retreating and using this first substrate holding hand to transfer a substrate with respect to the cassette; a substrate processing unit for executing a predetermined process on a substrate; a second transfer mechanism having a second substrate holding hand capable of advancing/retreating and pivotable at a vertical axis, and using the second substrate holding hand to transfer a substrate with respect to the first transfer mechanism and the substrate processing unit; a moving mechanism for moving the first transfer mechanism in an arrangement direction of the cassettes; and a control unit for controlling transfer of a substrate between the first transfer mechanism and the second transfer mechanism in a position where the first transfer mechanism is opposed to a cassette.

Abstract: Robotized device to move an object, comprising a manipulator having gripping elements lying on a determinate plane of manipulation, a first electric motor with which a first movement unit is associated, in turn associated with the manipulator, and a second electric motor with which a second movement unit is associated, in turn associated with the manipulator, wherein the first movement unit and the second movement unit define with the respective motor and with the manipulator a pantograph mechanism. The first movement unit comprises connection elements able to keep the gripping elements substantially parallel to the plane of manipulation during the functioning of the pantograph mechanism.

Abstract: A flat workpiece transport apparatus having a movable arm and an end effector. The end effector is connected to the arm. The end effector has a movable grip for holding a flat workpiece on the end effector. The end effector has a grip actuator operably connected to the movable grip. The grip actuator has more than one actuation members and a resiliently flexible member connecting the more than one actuation members. Each actuation member actuates at least one corresponding grip element of the movable grip to capture or release the workpiece. Flexure of the resiliently flexible member effects movement of at least one of the more than one actuation members for actuation of the at least one corresponding grip element. The resiliently flexible member is sandwiched by substantially rigid portions of the more than one actuation members.

Abstract: In an apparatus for withdrawing flat folded articles arranged in a pile within a magazine, a support holds the flat folded articles together with first movable hold up members. A sensor detects the contact surfaces between a lowermost article of the pile and an above article so as to place contact surfaces of the lowermost article and above article in alignment with a second movable hold up member situated beside the magazine and operated to insert between the contact surfaces and hold the above article while the first hold up members are moved to a release position for releasing the lowermost article on a conveying belt. According to a claimed method, the first and second hold-up members are alternately operated to hold the pile of articles while the lowermost article is released.

Abstract: In the present invention, a feeding apparatus comprising a plurality of feeding mechanisms is provided. The feeding apparatus comprises a power source, a base, a rotating axle, a plurality of feeding mechanisms, a plurality of connecting units and a plurality of fixing units. The power source is driven to rotate the rotating axle, and then the feeding mechanisms are rotated by the rotating axle to proceed feeding process. In addition, the rotation of each of the feeding mechanisms is controlled by the connecting units and the fixing units. However, the feeding mechanisms can be rotated together or individually to proceed feeding process. Therefore, the production capacity is increased by the feeding apparatus, as well as the cost is reduced by decreasing power needed.

Abstract: There is provided a method and system for transferring wafers. Wafers in a FOUP are horizontally aligned by vibrating the FOUP before unloading the wafers from the FOUP. Thereafter, a mapping process may be accurately performed, and the wafers stably unloaded from the FOUP.

Abstract: A composite fan casing for a gas turbine engine is provided includes, in an exemplary embodiment, a core having a plurality of core layers of reinforcing fiber bonded together with a thermosetting polymeric resin. Each core layer includes a plurality of braided reinforcing fibers with the braids of reinforcing fibers aligned in a circumferential direction.

Abstract: A series fan assembly has a primary fan, a flow modification element to reduce swirl, and a secondary fan, mounted in a series configuration. A connecting sleeve directs the combined output into an enclosure containing components to be cooled, or a heat sink. A sliding drawer is configured within said connecting sleeve to detachably hold said primary fan, said flow modification element, and said secondary cooling fan, allowing for the hot swappable replacement of defective components. A controller is in communication with a power source, said primary fan, said secondary fan, and at least one sensor monitoring the status of each of said primary fan and said secondary fan. Said controller is configured to maintain said combined output above a minimum control level at all times, in the event of the failure of said primary fan or said secondary fan.

Abstract: A multi-stage vacuum pump includes at least one turbo-compressor stage (11) and is equipped with a circular compressor stage (33) on the pressure side of the turbo-compressor stage. The pump has small axial dimensions, enabling the compression to be increased without significantly increasing the space requirement.

Abstract: A turbine shroud section includes a cooling passage that bleeds cooling air through an opening in a surface. The cooling passage forms an angle relative to an expected fluid flow direction. The angle defines an angular component in a circumferential direction, which is aligned with the expected fluid flow direction to reduce momentum energy loss of fluid flow through the engine.

Abstract: A cooling fan assembly includes a cooling fan unit having a rotating shaft and a plurality of rotating vanes combined with the rotating shaft, and a flow control unit provided in a front of a ventilation direction of the cooling fan unit to control a flow of air to reproduce a rotational directional flow component and to reduce a resistance of the flow of the air in a central portion thereof.

Abstract: An axial flow steam turbine includes an exhaust diffuser in the form of a volute for diffusing the exhaust steam and turning the exhaust steam from a generally axial flow direction to a generally radial direction. The volute exit may be at the bottom or to one side of the steam turbine. The volute and casing are independently mounted relative to one another on a foundation with a flexible joint therebetween.

Abstract: The invention relates to a pump apparatus for use in semiconductor processing. The apparatus may include a single pump configured to transition a substance flow from about molecular pressure to about atmospheric pressure.

Abstract: A blade assembly (10) for a turbine (16) including a vibration damper (12) having a mounting base (38) sealingly disposed at an inlet end (24) of a cooling fluid passageway (22) within the root section (20) of the blade assembly and including an opening (40) in the mounting base for passing cooling fluid into the cooling passageway. The opening is sized to function effectively as an orifice for limiting a maximum flow rate of cooling fluid in the event of a breach of the cooling fluid passageway downstream of the inlet end. A wear feature (34) is formed on the distal end of the vibration damper opposed the mounting base for rubbing interface with a complementary wear feature attached to a wall (26) of the cooling fluid passageway. The wear feature may include a non-planar wear surface such as angularly disposed wear surfaces (58, 60) effective to resist vibrational movement in two directions.

Abstract: Actuator for adjusting pitch angle of a rotor blade of a wind turbine rotatably mounted on a rotor hub, comprising a first drive element connectable with the rotor blade, a second drive element in meshing engagement with said first drive element, a lubricating device for lubricating the two drive elements and lubrication controller. A rotor with a rotor hub, on which at least one rotor blade is rotatably mounted, with actuator adjustable pitch angle. A wind turbine comprising such rotor and such actuator. Selective lubrication of zero teeth of the gear stage of the actuator considers the rotary position of the drive elements of the gear stage with respect to each other. The lubricating device includes a lubricant passage to selectively supply portion of first drive element and/or portion of second drive element meshing therewith depending on engagement position of drive elements or rotary position of rotor blade.

Abstract: A pitch change system includes a yoke assembly which receives a pitch trunnion that extends from each propeller blade assembly. Each pitch trunnion is received within a respective bearing assembly mounted in the yoke assembly. The bearing assemblies are mounted between a forward yoke plate and an aft yoke plate. A spacer is mounted between each adjacent bearing assembly to position and restrain each bearing assembly. Each spacer includes an extension which retains the adjacent bearing assembly on a pitch trunnion pin in a direction generally parallel to axis. Each of the bearing assemblies includes a generally rectilinear outer race and a spherical inner race inside diameter to receive the pitch trunnion pin. The rectilinear outer race reduces contact stresses to acceptable levels for high load applications yet permits blade installation without actuator disassembly.

Abstract: A turbine blade cascade structure includes a plurality of blades arranged in series in a circumferential direction on a wall surface, in which a corner portion defined by the wall surface and a front edge portion of each of blade bodies supported by the wall surface, to which a working fluid flows is provided with a coating portion that extends toward an upstream side of a flow of the working fluid. The turbine blade cascade structure is capable of reducing the secondary flow loss of the secondary flow in spite of the fluctuation of an incident angle of the working fluid flowing to the front edge portion of the blade body.

Abstract: An apparatus and method for attaching a rotor blade to a rotor, particularly for a gas turbine, is disclosed. The rotor blade has a blade vane and a blade root, such that the blade vane can be attached to or anchored in the rotor by the blade root. The blade root is configured asymmetrically, such that the front region of the blade root as seen in the direction of rotation of the rotor blade is provided with more anchoring teeth than a rear region of the blade root as seen in the direction of rotation of the rotor blade.

Abstract: A method for the production of a leadthrough in a fibre compound material for a rotor blade, with the following procedure steps: an opening free of fibres (12) is provided in a half-finished fibre product such that the fibres run around the opening (12), the half-finished fibre product is processed into a fibre compound material by adding a matrix material, and the leadthrough is put in place through the opening in the half-finished fibre product.

Abstract: A coated fan rotor blade and method for coating a fan rotor blade. The coated fan rotor blade includes a fan rotor blade; and a coating disposed on said fan rotor blade. The coating comprises a binder; and a filler made up of a plurality of particles. The filler material is incorporated into the binder material, and the particles in the filler interact to produce vibrational damping. In particular, the coating includes small, dense, flattened particles or plates that are incorporated into a thin layer of visco-elastic material, such as rubber, silicone, fluoro-elastomer, or urethane and bonded to the surface of the rotor blade to provide damping of high frequency excitation.

Abstract: A digital air compressor control system is for creating a customized air compressor. The system includes microprocessor, power supply, electric sensors and electric valve. In general, digital control system includes four overall components, which may be present in a variety of electric-mechanical formulations. The first component is the microprocessor. It controls the system's or component's action. It receives signals and sends out action commands according to user requirements. Microprocessor directs most every component action. The second component is power control system. Under microprocessor control, the power control system can supply or stop supplying current to electric components allowing accurate functionality. The next component is sensors. They include pressure sensors and temperature sensors. The pressure sensor picks up the pressure data from the control pressure area.

Abstract: The inventive well jet device comprises a packer arranged on a tubing string, a jet pump in whose body a nozzle and mixing chamber are arranged and a stepped through channel is embodied and a sealing unit which is provided with an axial channel and mountable in said stepped channel. A flexible tube with a logging device for measuring physical quantities which is arranged on the lower end thereof is passed through the axial channel of the sealing unit in such a way that it is movable with respect thereto. The packer releasing is carried out when a specified depth is attained The logging device is run into the well and arranged in production formation areas by means of said flexible tube. During downwards running, a sealing unit is mounted in the through channel of the jet pump and the background values of physical parameters of the productive formations are recorded.

Abstract: A first swash plate 18 is coupled to a drive shaft 16 to be rotatable integrally with the drive shaft 16. Single head pistons 23 are coupled to the first swash plate 18 via shoes 25A, 25B. Rotation of the drive shaft 16 rotates the first swash plate 18, which causes the pistons 23 to reciprocate and compress refrigerant gas. The first swash plate 18 supports an annular second swash plate 51 to be rotatable relative to the first swash plate 18 via a ball bearing 52. The second swash plate 51 is arranged between the first swash plate 18 and the shoes 25B that receive a compressive load to be slidable with respect to the first swash plate 18 and the shoes 25B. Inclined surfaces (chamfers) are provided on salient corners 18b, 18c of the first swash plate 18. Therefore, the durability of the swash plates and the shoes are improved.

Abstract: This invention is to provide a piston-type compressor that assures optimal lubrication by supplying oil in plentiful quantity to a sliding portion in a cylinder block having cylinders formed therein, through which pistons slide reciprocally. A crankcase is defined by a cylinder block 1 having formed therein a plurality of cylinders 17 through which pistons slide, and a housing mounted at the cylinder block 1, and as a shaft passing through the crankcase rotates, a swashplate disposed inside the crankcase is made to rotate, thereby engaging the pistons to reciprocally slide through the cylinders. At the cylinder block 1, an inbound oil guide passage 35 having one end thereof made to open over an area at the end surface of the cylinder block facing the crankcase between adjacent cylinders 17 and another end thereof connecting to a sliding portion inside the cylinder block.

Abstract: A turbocharger (300) for an internal combustion engine (500) includes a center housing (304) connected to a turbine housing (302) and a compressor housing (306). A shaft (318) is in a bore (314) of the center housing (304). An oil supply passage (328) is in fluid communication with the bore (314). An oil drain passage (310) is in fluid communication with a oil cavity (334) and the bore (314). A vent passage (330) is in fluid communication with the oil cavity (334) and an internal volume (520) of the internal combustion engine (500). Oil flow passes through the first passage (328) and the drain passage (310) during operation of the internal combustion engine (500). A first pressure of air (P1) in the oil cavity (334) is about equal to a second pressure of air (P2) in the internal volume (520) of the internal combustion engine (500).

Abstract: A diaphragm pump and a method for aligning thereof, the pump including an electric motor, a motor shaft, driven by the electric motor for rotation about an electric motor shaft axis, an eccentric drive, driven by the electric motor, via the motor shaft, to provide reciprocal driving along a pump driving axis, the eccentric drive including an eccentric drive shaft rotating about an eccentric drive shaft axis, the eccentric drive shaft axis being coaxial with the electric motor shaft axis, a non-rigid coupling interconnecting the motor shaft and the eccentric drive shaft and a diaphragm pumping assembly having a fluid inlet and a fluid outlet communicating with a pumping chamber, the pumping chamber having a diaphragm arranged to be reciprocally driven about the pump driving axis.

Abstract: An oil pump is provided with helical grooves 142 and 142? carved on the outer periphery of the shaft 125, with an approximately cup-shaped sleeve 146 loosely fit to the outer periphery of the shaft such that the bottom part of the shaft and the bottom plate of the above-mentioned sleeve are engaged in relatively rotatable manner, and with a rotation suppression means for suppressing the rotation of the sleeve. Thereby, even at the low rotation rate operation, oil is raised reliably to compressor unit, offering a highly reliable compressor operation.

Abstract: A system for locking the axial position of an axial motion output device upon the loss of an electrical input signal includes a locking device operatively associated with the output device and adapted for movement between a neutral position in which the output device can move freely relative to the locking device and a locking position in which the locking device frictionally engages the output device with a sufficient amount of force to prevent further movement thereof upon the loss of an electrical input signal.

Abstract: A compressor includes a discharge and/or suction valve whose valve seat has a spiral groove that faces the valve. When the valve is closed, the spiral groove provides a minute fluid passageway between the valve and the valve seat. The spiral groove reduces fluid adhesion between the valve and the seat so that the compressor is quieter, more efficient and less expensive to make.

Abstract: An environmentally friendly process for producing metal biporous foam by using filamentary metal powders such as nickel or copper. The filamentary metal powders are initially wet when combined with a suitable foam former such as methylcellulose. Because the filamentary metal powder is wet, it does not extract water from the foam structure thereby ensuring a highly porous metal foam having both high macroporosity and microporosity.

Abstract: Methods are provided for manufacturing turbine disks each having a hub surrounded by a rim, the hub having a first microstructure and the rim having a second microstructure that is coarser than the first microstructure, the methods employing a first powder alloy having a first gamma prime solvus temperature and a second powder alloy having a second gamma prime solvus temperature that is less than the first gamma prime solvus temperature. One method includes the steps of forming an ingot from the first and second powder alloys, the ingot having an inner section having the first microstructure and an outer section having a microstructure that is less coarse than the second microstructure, and exposing the ingot to a temperature between the first and second gamma prime solvus temperatures while forming the ingot into a plurality of turbine disks to transform the microstructure of the outer section into the second microstructure.

Abstract: An iron base sintered alloy having highly densified and hardened surface and a producing method thereof are provided. The iron base sintered alloy includes an iron base sintered alloy surface layer portion having a thickness in a range of 1 ?m to 2 mm from a surface of the iron base sintered alloy and containing K and/or Na in an average concentration of 0.0001 to 1 mass %, or having an average concentration of P higher than a concentration of P in an iron base sintered alloy inner portion located inside the iron base sintered alloy surface layer portion and containing K and/or Na in an average concentration of 0.0001 to 1 mass %.

Abstract: A manufacturing method for wear resistant sintered member is provided. The method includes: compacting a raw powder containing a matrix forming powder and a hard phase forming powder into a green compact, the matrix forming powder containing 90 mass % or more of a powder having the maximum particle diameter of 46 ?m, and the hard phase forming powder being 40 to 70 mass % with respect to the raw powder; and sintering the green compact.

Abstract: A method of fabricating clutch races for one-way clutch mechanisms includes compacting and sintering a ferrous-based powder metal to near-net shape to produce a core density of between about 6.8 to 7.6 g/cc and a race surface that is near-net shape. The cam surface is cold worked in a manner that locally increases the density at the surface to develop a highly densified layer of essentially fully densified material and with a final surface finish that, after heat treatment, is ready to use in a one-way clutch application without further working. Both the inner and outer clutch races of one-way clutch mechanisms can be formed in this fashion and yield races that exhibit excellent strength, toughness, fatigue strength and wear resistance.

Abstract: A powder of an alloy containing a compound is enclosed in a cylindrical container, hot isostatic press and/or hot extrusion are applied in that state, and compound is isolated by these workings in order to metallically bond the powders with each other. When the metallic part is inserted into the container or the metallic part has a cylindrical shape, the container is formed of a material which can be the metallic part. Then, machining is applied in order to produce a metallic part having on a surface thereof an alloyed layer containing the dispersed compound particles. The metallic parts having on a surface thereof an alloyed layer containing dispersed compound particles can be produced without using a joining method such as welding.

Abstract: An austenitic alloy for high temperature use, particularly for use in resistance heating elements. The alloy includes primarily the elements Fe, Ni, and Cr, and it has the following main composition, given in weight %, Ni 38-48, Cr 18-24, Si 1.0-1.9, C<0.1, and the balance Fe. The alloy provides good hot form stability, good oxidation resistance, and a relatively high electrical resistance coupled with a low change in resistance as a function of temperature.