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Method and apparatus for upsetting

A technology for upsetting and equipment, applied in metal processing equipment, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve the problems of increasing manufacturing costs and increasing the number of steps to prevent quenching distortion, Effect of eliminating corrective steps and reducing manufacturing costs

Inactive Publication Date: 2008-06-11
SHOWA DENKO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the number of steps increases, resulting in increased manufacturing costs

Method used

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  • Method and apparatus for upsetting
  • Method and apparatus for upsetting
  • Method and apparatus for upsetting

Examples

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Embodiment Construction

[0102] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0103] In FIG. 1, reference numeral "10" denotes an upset forging apparatus according to an embodiment of the present invention. Reference numeral "1" indicates a raw material.

[0104] In FIG. 9, reference numeral "5" denotes an upset manufactured product manufactured by the upset apparatus 10 of this embodiment. The upset manufactured product 5 is used as a preform for the manufacture of arms of vehicles such as automobiles or rail vehicles.

[0105] As shown in Figures 1 and 2, the raw material 1 is a solid straight rod-shaped material made of heat-treated aluminum alloy. The raw material 1 has a circular cross section and a constant diameter in the axial direction.

[0106] Since the above-mentioned heat-treated aluminum alloy is the material of the raw material 1, when expressed by an aluminum alloy number based on JIS (Japanese Industrial Standard), 2xxxx...

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PUM

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Abstract

An upsetting method capable of eliminating a correction step by preventing occurrence of quench distortion is provided. The method includes the step of preparing an upsetting apparatus 10 equipped with a forming die 11 and a guide 20 having an insertion hole 21 for securing a diameter expansion scheduled portion 2 of the bar-shaped raw material 1 in a buckling preventing state and a punch 30. The diameter expansion scheduled portion 2 of the raw material 1 in a heated state is disposed in the insertion hole 21 of the guide 20 in a heated state, and the tip end portion of the guide 20 is disposed in the cavity 12 of the forming die 11 adjusted in temperature so as to be below a temperature of the raw material 1, and the raw material is secured to the securing portion 13 of the forming die 11. With this state, the guide 20 is moved in a direction opposite to a moving direction 37 of the punch 30 while axially pressurizing the diameter expansion scheduled portion 2 of the raw material 1 by moving the punch 30, to thereby expand the diameter expansion scheduled portion 2 of the raw material 1 exposed between a tip end portion of the guide 20 and the securing portion 13 of the forming die 11 within the cavity 12 of the forming die 11.

Description

[0001] This application claims the benefit of Japanese Patent Application No. 2005-177991, filed June 17, 2005, and U.S. Provisional Application No. 60 / 693,407, filed June 24, 2005, the entire contents of which are hereby incorporated by reference as refer to. [0002] Cross References to Related Applications [0003] This application is an application filed under 35 U.S.C. §111(a) and claims under 35 U.S.C. §119(e)(1) to the U.S. Filing Date Benefit of Provisional Application No. 60 / 693,407. technical field [0004] The present invention relates to an upsetting method and an upsetting apparatus for manufacturing various products such as arms, connecting rods, or double-headed pistons of compressors used in vehicles (automobiles or railcars). Background technique [0005] The following description presents the inventor's recognition of the related art and the problems therein, and should not be regarded as an acknowledgment of these recognitions in the prior art. [0006]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/08B21J5/00B21J1/06B21J13/02
CPCB21J5/08
Inventor 大泷笃史
Owner SHOWA DENKO KK
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