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Method for producing a component of a synchronization device for a manual transmission

A technology of synchronizing device and transmission, applied in the direction of gear transmission mechanism, manufacturing tool, quenching device, etc., can solve the problems of complicated and expensive

Inactive Publication Date: 2014-11-26
DIEHL METAL STIFTUNG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overall, this known method is cumbersome and expensive
[0003] A further disadvantage of the known method is that, for example, the synchronizing ring thus produced has to be further processed in its functional area, for example at contours such as toothing, positioning lugs, centering lugs or drive projections. to be hardened

Method used

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  • Method for producing a component of a synchronization device for a manual transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The outer ring is provided with toothing or locking teeth 4 in sections on its outer circumference. The reference numeral 5 designates a centering cam, and the reference numeral 6 designates a positioning cam with a positioning cam side 6 a which is added between the segments of the toothing 4 . Extending from the inner periphery is a drive lug 7 with a drive lug side 7a. The inner circumferential surface of the outer ring 1 forms the first friction surface 8 .

[0022] The intermediate ring 2 has a second friction surface 9 on its inner circumference and a third friction surface 10 on its outer circumference. A drive cam extending in the axial direction with a drive cam flank 11 a is identified with reference numeral 11 .

[0023] The inner ring 3 has a fourth friction surface 12 on its inner circumference and a fifth friction surface 13 on its outer circumference. The connecting lugs extending axially in the direction of the outer ring 1 are identified with referen...

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PUM

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Abstract

The invention relates to a method for producing a component of a synchronization device for manual transmissions, in particular a synchronizer ring (1, 2, 3), wherein a round blank produced from metal is formed in a plurality of forming steps. In order to simplify the production process, it is proposed according to the invention that at least one of the forming steps is a hot forming step in which the round blank is partially heated to a temperature of more than 600° C. and is then formed in the partially heated forming portion.

Description

technical field [0001] The invention relates to a method for producing a component of a transmission synchronizer and a component of a transmission synchronizer. Background technique [0002] Such a method is known from DE 35 19 811 C2. In this case, round blanks stamped from sheet metal undergo a number of cold forming steps one after the other. In order to produce a predetermined contour, such as a toothing, which extends only over a partial section of the structural part, a plurality of successive cold-forming sub-steps is often also required. In this case, the profile structure is initially prefabricated and in a final cold forming sub-step the profile structure is finally produced. For each cold forming step, it is necessary to provide complex and expensive forming tools (molds). When the contour structure changes, the corresponding forming tool must also be changed. Overall, this known method is complicated and expensive. [0003] A further disadvantage of the kno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/16B21D53/16F16D23/02B21K1/30B22F5/08B23P15/14
CPCB21K1/30B21D53/16F16D23/025C21D9/40C21D1/673C21D7/13B23P15/14B21D37/16C21D9/32B23P15/00F16D2250/00B21D53/26Y10T29/49
Inventor M·默克莱因M·德恩赫菲尔M·霍尔德里德
Owner DIEHL METAL STIFTUNG & CO KG