Original document(15 pages)  中文版
    The invention relates to a method for producing balls, especially for ball pivots, and to a ball element for two-part ball pivots. The balls according to the invention are produced by cold extrusion and subsequent grinding, using a micro-alloy carbon-manganese steel. The use of micro-alloy carbon-manganese steel allows to obtain balls having excellent strength and hardness already due to the cold shaping. It is not necessary to use a tempering step as required for the production of generic balls, which allows the use of less expensive materials, thereby considerably reducing production costs. The invention allows for a simple and inexpensive method for producing balls for two-part ball pivots while maintaining and/or increasing surface and material quality as well as strength and wear resistance. As a result, the complexity of the method is reduced and the problem of dents which can occur on the ball surfaces during tempering is removed.
Application Number
申请号
200580014259 Application Date
申请日
2005.05.02
Title 名称 Ball element for two-part ball pivot and corresponding method of production
Publication Number
公开号
1950619 Publication Date
公开日
2007.04.18
Approval Pub. Date Granted Pub. Date
International Classification 分类号 F16C11/06;C21D7/02;C22C38/04
Applicant(s) Name
申请人
Zahnradfabrik Friedrichshafen
Address 地址
Inventor(s) Name 发明人 Kruse Jochen;Adamczyk Dirk;Stoeterau Reinhard;Castanet Jean-Paul
Attorney & Agent 代理人 caimin jun zhaoxin
More information 更  多  信  息


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