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JPH0215833A |
PURPOSE: To improve the productivity of an object to be worked by working the object by using a working roller on which plural groove shaping parts provided with a projection for forming a groove, and a flat part having no projection are...
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JPH026033A |
PURPOSE: To form an annular groove and annular projecting part with high accuracy and to obtain a molded product having a high flatness by forming a specific one-side recessed section in one surface of a plate material by plastic working...
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JPH026032A |
PURPOSE: To form an annular groove in a plate material with high accuracy and to obtain a mold product having a high flatness by forming a specific one-side recessed section on one surface of the material by plastic working and at the sa...
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JPH0144173Y2 |
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JPH0152100B2 |
PURPOSE:To prevent the first and the second layers from escapement to the lateral direction while making a groove in the first layer and to increase the productivity of the bearing plate, by cold pressing while restricting the lateral di...
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JPH0148090B2 |
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JPH0147247B2 |
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JPH0147260B2 |
The apparatus comprises a support for supporting a blank in which at least one groove having a curved axis and a circular section is to be formed, a ball for forming the groove and carried at one end of a ball holder, a device for displa...
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JPH01245986A |
PURPOSE: To secure an uniform hardenability and to prevent the generation of a plane strain at heat treatment time by giving noncontinuous unevenness on a surface at a surface roughening stage. CONSTITUTION: A noncontinuous ruggedness is...
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JPH01143624U |
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JPH0141410B2 |
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JPH0128894Y2 |
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JPH0133255B2 |
The present invention concerns an apparatus for forming into shape one end portion of a rod-like metallic work such as a pipe. The apparatus comprising a holding member to hold the work, a split die composed of at least two movable die m...
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JPH01139341A |
PURPOSE:To prevent the occurrence of feathering on a lid upon can opening, by using a score edge which is shaped into an unsymmetrical trapezoid with respect to the axis with given angles on both sides. CONSTITUTION:In the scoring proces...
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JPH0171216U |
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JPH0124581B2 |
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JPH0123205B2 |
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JPH0114351Y2 |
The device is composed of an inverted-U-shaped frame, a jig and a pipe fixture, and the inverted-U-frame is formed in such a way that the inverted-U-frame is formed in an inverted-U-shape and being formed with two pieces of leg portions ...
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JPH0114347Y2 |
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JPH0122048B2 |
PURPOSE:To reduce operating time without requiring a measurement of a depth of groove, by coining a mark simultaneously, in coining a groove for bending in a metallic sheet by means of a coining tool. CONSTITUTION:A projecting part 6 for...
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JPS648691B2 |
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JPS6440119A |
PURPOSE: To improve the productivity and to the manufacturing cost by executing an emboss work with a forming roll on a strip material and forming a lateral rib, an oblique rib, then, a vertical rib part whose one part is superimposed on...
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JPS643640B2 |
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JPS645709U |
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JPS641219B2 |
Manufacturing method for a tubular shell of a constant velocity universal-joint for flexibly coupling two rotary shafts, to one of which the shell is fixed at a flange thereof. The method comprises a groove and preliminary flange forming...
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JPS6366623B2 |
In a rotary turret-type machine, in which operations are performed on successive can body cylinders (8, 12) or the like by a mandrel (59, 159) inside the workpiece co-operating with a beading rail (76, 176), each workpiece (8, 12) is gui...
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JPS6347377Y2 |
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JPS6347376Y2 |
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JPS6362294B2 |
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JPS6362296B2 |
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JPS6362295B2 |
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JPS63290625A |
PURPOSE: To form an extrusion part on a plate stock and to save the manufacturing cost of a die, die changing time, etc., by extruding one part on the surface of a plate stock in pressurizing direction by pressing with the outer peripher...
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JPS6344175Y2 |
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JPS63246565A |
PURPOSE: To obtain a toothed pulley which has large rigidity and no eccentricity by using a cup metal plate having one end surface opened, forming projected and recessed tooth portions on the inner and outer surfaces of the peripheral wa...
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JPS63242422A |
PURPOSE: To improve the quality of a fluid bearing and to effect the mass production by providing a projecting bar for grooving on the outer diameter face of a punch, inserting it onto the same axis with a sleeve as well and then passing...
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JPS6344450B2 |
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JPS6342524B2 |
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JPS6340609B2 |
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JPS6332848B2 |
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JPS6329619B2 |
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JPS6320418Y2 |
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JPS63126623A |
PURPOSE: To improve the shape quality of a fin by performing a cross type hot slanting rolling with the rolling roll providing the groove for forming a fin at the intervals becoming wider gradually and the inner face constrainer capable ...
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JPS63119929A |
An apparatus for crimping the leading edge of continuously produced spiral pipes is disclosed. The apparatus includes upper and lower passive crimping rollers, which are rotatably mounted adjacent each other in a holder. The holder is ca...
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JPS63115623A |
A method and apparatus for roll forming to neck-in the open ends of drawn and ironed cans and replace double necks and triple necks is disclosed. An externally disposed free roll (11), preferably having independently rotatable sections i...
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JPS6323861B2 |
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JPS6323859B2 |
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JPS6323862B2 |
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JPS6323865B2 |
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JPS6317530Y2 |
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JPS6316208B2 |
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