Abstract: Provided is a saw blade including saw teeth, each of the saw teeth satisfying 17°???40°, 35°???58°, 15°<?, where ? is a rake angle, ? is a tooth angle, and ? is a clearance angle; a sum of the rake angle ?, the tooth angle ?, and the clearance angle ? being 90?; a radius r of an arc-shaped chip curler portion 7 in contact with a rake surface 5 of each of the saw teeth being in a range within 10%±4% of any of a saw tooth pitch and an average saw tooth pitch of the saw blade; a fan angle ? of the chip curler portion 7 being in a range within 85°±20°; and a dimension h from an intersection portion 11 of the chip curler portion 7 and a gullet forming surface 3 extending from a tooth bottom side of each of the saw teeth, to a tooth point of each of the saw teeth being in a range within (2r×1.1)±0.2(2r×1.1).

Abstract: A workpiece cutting method utilizing a band-saw machine, includes the following steps of: guiding tooth tips of an endless band-saw blade provided on the band-saw machine in a direction of a workpiece by a band-saw blade guiding apparatus; and applying vibrations to the band-saw blade in a cutting direction to the workpiece so as to perform cutting of the workpiece by a vibration applying unit provided on the band-saw blade guiding apparatus.

Abstract: An upper tool device includes: a punch body having a punch blade at a lower end of the punch body; a punch guide into which the punch body is fitted so as to be movable in vertical direction; an adjustment screw member provided above the punch guide, the adjustment screw member screwed with a screw formed on the punch body; a stripper unit including an urging unit urging the punch body in an upward direction; and a retainer collar including a stopper piece having a tip end disengageably engaged with a stopper formed on the punch body. In the device, the stripper unit is detachably provided in the upper tool device, and the retainer collar is provided between the punch guide and the stripper unit in a manner such that the retainer collar can be relatively rotated against the stripper unit.

Abstract: A merchandise presentation method includes: a step of preparing a standard value relating to work data, which specifies work performed by a user; a step of obtaining actual work data, which specifies the work actually performed by each user with respect to the work; a step of comparing the actual work data with the standard value; a step of selecting any one of a plurality of merchandise or a combination thereof, based on the comparison result; a step of calculating increasing profit by using at least one of the selected merchandise; and a step of presenting to the user the content of at least one of the selected merchandise and the increasing profit.

Abstract: A band saw blade includes multiple saw teeth having a straight tooth and right and left set teeth, and also includes a gullet portion provided between the saw teeth. A rake surface of each of the saw teeth is provided with a chip curler portion formed into an arc shape at an entire range of approximately 90° to form a chip generated at the time of cutting a work into a small rolled shape before the chip comes into contact with a bottom portion of the gullet portion. A chip non-contact surface to be kept out of contact with the chip is formed to have either a flat surface or a convex surface between the chip curler portion and the bottom portion of the gullet portion, and a dent portion is formed between the chip non-contact surface and the gullet bottom portion, the dent portion recessed from the chip non-contact surface in an opposite direction to a moving direction of the band saw blade in order to increase a radius of a concave curved surface constituting a back side of the gullet bottom portion.

Abstract: An adapter (21) for tapping used in a turret punch press, comprises: a ring gear (29) in which a tapping tool (25) is mountable; and a gear holder (31) in which the ring gear is disposed and which is mountable on a turret (9) of the turret pinch press so as to locate the disposed ring gear (29) at a position corresponding to a punch mounting section (33) formed in advance in the turret (9) of the turret punch press.

Abstract: A workpiece cutting method utilizing a band-saw machine, includes the following steps of: guiding tooth tips of an endless band-saw blade provided on the band-saw machine in a direction of a workpiece by a band-saw blade guiding apparatus; and applying vibrations to the band-saw blade in a cutting direction to the workpiece so as to perform cutting of the workpiece by a vibration applying unit provided on the band-saw blade guiding apparatus.

Abstract: A press machine includes: an electric motor for raising and lowering a slide by rotating a crank shaft; a motion datum receiving module through which, by an input operation, an operator inputs a motion datum including, as input items, height positions at which the slide starts and ends an oscillation process, a speed at which the slide carries out the oscillation process, an angle at which the crank shaft is rotated in a direction during a drive-in operation, and an angle at which the crank shaft is rotated in the other direction during a return operation; a motion pattern generator for generating a motion pattern of the slide on the basis of the motion datum inputted through the motion datum receiving module; and a motor controlling module for controlling the electric motor on the basis of the motion pattern generated by the generator.

Abstract: A band saw machine includes a driving wheel and a driven wheel around which an endless band saw blade is wound. At least one of the driving wheel and the driven wheel is directly connected to an output shaft of a control motor. The output shaft of the control motor is arranged in a cylindrical bearing unit installed on a motor base supporting the control motor. The driving wheel is rotatably supported by the bearing unit.

Abstract: A ram driving method including the steps of fixing one end of a large-diameter piston rod integral with a large-diameter piston reciprocably included in a large-diameter cylinder attached integrally to a ram to a fixing unit, connecting one end of a small-diameter piston rod integral with a small-diameter piston reciprocably included in a small-diameter cylinder integral with the large-diameter cylinder to a moving member moved by a motor driving, integrally moving the small-diameter cylinder and the small-diameter piston and communicating a first compartment and a second compartment of the large-diameter cylinder divided by the large-diameter piston with each other, moving the ram integrally with the small-diameter piston rod moved by the moving member, and communicating the small-diameter cylinder with the large-diameter cylinder, thereby moving the large-diameter cylinder with a strong force by a working fluid supplied from the small-diameter cylinder.

Abstract: In a bending apparatus which moves one of upper and lower tables (9, 10), and performs bending on a workpiece (W) by tools (P, D) attached to the upper and lower tables (9, 10), a tool group including a plurality of split tools is transferred to the upper and lower table (9, 10), a plurality of process stations are formed by splitting the transferred tool into a plurality of tool groups based on automatically or manually determined tool-layout information, and then bending is carried out.

Abstract: A punch press provided with a punch and die set taking-out/taking-in apparatus 291; a punch taking-out/taking-in arm 367 for performing taking-out/taking-in of a punch P; and a die taking-out/taking-in arm 369 for performing taking-out/taking-in of a die D, wherein taking-out/taking-in of many punches P, dies D accommodated in a punch and die set accommodating portion 282 of a rack 283 is performed by pivoting a punch holding arm 279 which holds a punch P and a die holding arm 281 which holds a die D in a punch and die set exchanging apparatus 23 forward or backward; and delivery of a die is performed between the punch and die set taking-out/taking-in apparatus 291 and the punch and die set exchanging apparatus 23.

Abstract: A sheet metal model creation device (1) for creating a sheet metal model while displaying a three-view drawing includes: a three-view drawing reader (13) configured to read three-view drawing information and display the three-view drawing on a screen; a three-view drawing display controller (15); a three-dimensional face creator (17) configured to create a three-dimensional face associated with an element of the three-view drawing selected on the screen in response to an operation of a mouse; and a model display controller (19) configured to combine the three-dimensional face with the sheet metal model and display the model. Here, the operation of the mouse is movement of a mouse (7), and selection of the element of the three-view drawing on the screen is selection of an element within a region that is based on a position of a mouse pointer associated with the movement of the mouse (7).

Abstract: A processing program preparing apparatus for a numerically controlled punch press includes a processing intention data generator for generating, on the basis of product shape data, processing intention data for specifying a processing region to be processed to manufacture a product. The processing program preparing apparatus also includes a tool data adding section for adding, to the processing intention data, data for specifying a punch and a die to be used to process the processing region.

Abstract: A sheet metal factory processing system includes a production manager which generates a processing schedule for multiple units each including at least one material sheet, to manage the processing schedule on a per-unit basis. The processing schedule is generated based on sheet processing data obtained by allocating parts to be blanked from the material sheets according to a manufacturing designation. The sheet metal factory processing system also includes a sheet metal factory processing installation which is connected to the production manager through a communication network. The sheet metal factory processing installation receives the generated processing schedule from the production manager and executes the received processing schedule.

Abstract: A bending apparatus is provided with a ram start-up device so as to be movable in a lateral direction. A controller moves the ram start-up device to a point in front of positioning points of abutments corresponding to points of selected edges of a workpiece. The bending apparatus includes a foreign object detector that detects the entry of a foreign object into a region of movement of the ram start-up device. A controller prevents the ram start-up device from moving when the entry of the foreign object is detected.

Abstract: A method is provided for guaranteeing generation of 2D sketches based upon a 3D sheet metal part shape created by any type of sheet metal feature operation. The method includes performing a sheet metal feature operation to create the 3D sheet metal shape. The 3D sheet metal shape will have multiple flanges. Then an editable 2D sketch is created for each flange by obtaining geometric parameters of the 3D sheet metal shape, and linking the parameters with the appropriate generated sketch. The constraint parameters can include line segment lengths and angles between selected adjoining two line segments of the 3D sheet metal shape.

Abstract: An upper tool device includes: a punch body having a punch blade at a lower end of the punch body; a punch guide into which the punch body is fitted so as to be movable in vertical direction; an adjustment screw member provided above the punch guide, the adjustment screw member screwed with a screw formed on the punch body; a stripper unit including an urging unit urging the punch body in an upward direction; and a retainer collar including a stopper piece having a tip end disengageably engaged with a stopper formed on the punch body. In the device, the stripper unit is detachably provided in the upper tool device, and the retainer collar is provided between the punch guide and the stripper unit in a manner such that the retainer collar can be relatively rotated against the stripper unit.

Abstract: A bending angle detecting device for a workpiece used in a bending machine that bends the workpiece in cooperation of upper and lower tools. The bending angle detecting device has a detector which includes a casing and which can detect a bending angle of the workpiece with the casing fixed in contact with a contact portion of the lower tool.