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Method of manufacturing camshaft

A technology of camshafts and cams, which is applied in the field of manufacturing camshafts, and can solve problems such as product errors

Active Publication Date: 2014-06-04
SEOJIN CAM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to errors in the product after brazing is complete

Method used

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  • Method of manufacturing camshaft

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Embodiment Construction

[0039] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0040] The method of manufacturing a camshaft according to the present invention includes manufacturing a cam 10 having a recess 12 formed therein, and fastening the cam 10 to a shaft 20 having a protrusion 21 in such a manner that either the cam 10 or the shaft 20 rotates relative to the other. After fastening, the cam 10 is joined to the shaft 20 by brazing rather than sintering.

[0041] 【Manufacture of cams by main sintering】

[0042] figure 1 A cam 10 with a recess 12 according to the invention is shown.

[0043] The circumferential inner surface of the cam 10 includes a recess 12 forming a larger diameter and a small diameter portion 16 . A slope 14 is formed between each recess 12 and the adjacent small-diameter portion 16 .

[0044] After forming the cam 10 with the recess 12, the cam 10 with the recess 12 is sintered. In th...

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Abstract

Disclosed herein is a method of manufacturing a camshaft. Particularly, the present invention relates to a method of manufacturing a camshaft which includes a single sintering operation and a brazing operation, thus reducing the time for manufacturing.

Description

technical field [0001] The present invention relates generally to methods of manufacturing camshafts, and more particularly, to methods of manufacturing camshafts using a brazing process, thereby reducing manufacturing time. Background technique [0002] In general, a camshaft has a plurality of cams arranged in different phases at positions spaced apart from each other at predetermined intervals on the shaft. The camshaft is repeatedly rotated by the rotational force of the crankshaft, thereby periodically opening and closing the intake valve and the exhaust valve of the combustion chamber, so that the engine can be continuously operated. [0003] Such conventional camshafts are manufactured in an integral rod type, in which a cam and a shaft are integrally formed of the same material, or in an assembly type, in which a cam manufactured by a separate process is connected to the shaft in various ways. [0004] A component type hollow camshaft can be lighter than a solid cam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/00B21K1/06B22F5/00
CPCB22F5/08F01L1/047B23P15/00B21J5/12B21K1/08B23K2201/005B23K2203/04B23K1/0008B23P2700/02B23K2101/005B23K2103/04Y10T29/49293B21K1/06B22F5/00B23K1/00B23K31/02
Inventor 金容均朴隆商宋俊浩韩栋圭金永浩
Owner SEOJIN CAM
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