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Manufacturing device and manufacturing method of raw material for forging

A technology for a manufacturing device and a manufacturing method is applied to the manufacturing device and the manufacturing field of raw materials for forging, and can solve the problems of iron oxide layer residue, product defects and the like

Active Publication Date: 2021-09-07
塩川正兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It may be removed in subsequent machining processes such as cutting and grinding, but if only grinding is performed, there will be the following problem: the iron oxide layer will remain and the product will become a defective product

Method used

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  • Manufacturing device and manufacturing method of raw material for forging
  • Manufacturing device and manufacturing method of raw material for forging
  • Manufacturing device and manufacturing method of raw material for forging

Examples

Experimental program
Comparison scheme
Effect test

example 2

[0170] Figure 12 Example 2 of the raw material for forging process manufactured by the said manufacturing apparatus 1, ie, the raw material 5c for forging process is shown. After pressurizing a pair of dies with only the R-shaped die surface to produce the raw material for forging processing, it becomes as follows Figure 12 the shape shown. The forging raw material 5c of Example 2 also does not have sharp corners, so no problem arises.

example 3

[0172] Figure 13 The example 3 of the raw material for forging process manufactured by the said manufacturing apparatus 1, ie, the raw material 5d for forging process is shown. Using the pair of molds 20A, pressurization is performed under conditions lower than the pressurization conditions for the forging raw material 5 of Example 1, and after the forging raw material is manufactured, it becomes as follows Figure 13 the shape shown. In the central part, there remains a concave part 5d1 in which the cutting surface is in a concave state after being cut by a cutting machine without pressure, but there is no problem due to the shape.

[0173] [Example 4 of raw materials for forging processing]

[0174] Figure 14The example 4 of the raw material for forging process manufactured by the manufacturing apparatus 1 of the raw material for forging process, ie, the raw material 5e for forging processing is shown. Utilizing a pair of molds formed with only the R-shaped mold surfac...

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Abstract

The invention provides a manufacturing device and a manufacturing method of a raw material for forging processing. The manufacturing device of the present invention includes a chamfering device, which is installed near a cutting machine that cuts a bar-shaped raw material into a predetermined length to form a cut raw material, and uses a press that presses the faces of a pair of dies against the corners of both ends of the cut raw material. Forming to perform chamfering, a pair of molds includes: a mold having a chamfering mold surface formed on one side, and a chamfering mold surface for pressing and cutting off a corner portion of a raw material to form a surface having a predetermined cross-sectional shape; And the other mold is formed on the other side with another mold surface for chamfering, and the other mold surface for chamfering is used to press and cut the other corner portion of the raw material to form a surface with a predetermined cross-sectional shape. The pair of molds has a structure in which the outer peripheral portion of one mold fits into the guiding inner peripheral portion of the other mold when chamfering. The invention can improve production efficiency and improve forging quality.

Description

technical field [0001] The present invention relates to a manufacturing device and a method for manufacturing a forging raw material having a surface of a predetermined shape formed at an edge of a cut raw material, and a method for manufacturing a forging raw material. More specifically, the present invention relates to a manufacturing device and a method for manufacturing raw materials for forging, in which corners of cut raw materials obtained by cutting rod-shaped raw materials into predetermined lengths with a cutting machine are chamfered to a predetermined length. Shaped surface, so as to manufacture raw materials for forging processing. Background technique [0002] In the past, automotive-related parts such as spur gears, bevel gears, constant velocity joints, and clutch plates were generally forged products. The material for forging used in the manufacture of these forged products is a material (eg, a steel cylinder) obtained by cutting a bar-shaped material (eg, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J1/00
CPCB21J1/00B21J1/02B21J5/02B21J13/02
Inventor 塩川正兴
Owner 塩川正兴
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