Invention Grant
US07829015B2 Formation of non-axial features in compacted powder metal components
失效
在压实的粉末金属部件中形成非轴向特征
- Patent Title: Formation of non-axial features in compacted powder metal components
- Patent Title (中): 在压实的粉末金属部件中形成非轴向特征
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Application No.: US11755993Application Date: 2007-05-31
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Publication No.: US07829015B2Publication Date: 2010-11-09
- Inventor: Sean T. Kuplen , Matthew W. Crump , John D. Sarick
- Applicant: Sean T. Kuplen , Matthew W. Crump , John D. Sarick
- Applicant Address: US MI Auburn Hills
- Assignee: BorgWarner Inc.
- Current Assignee: BorgWarner Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: Brown & Michaels, PC
- Main IPC: B22F3/035
- IPC: B22F3/035

Abstract:
An apparatus and process for forming compacted powder metal parts having a non-axial undercut feature. An undercut die is located between the upper and the lower dies and contains a plurality of shaped punches aligned in a circular pattern. Each of the shaped punches contains a working edge. The working edges converge to form an inner circumference which creates the undercut feature. The edges of the shaped punches slide with respect to each other to change the size of the inner circumference from a maximum diameter position to a minimum diameter position. During compaction, the rotation of the shaped punches alters the inner circumference to its minimum diameter position thereby forming an undercut in the final compacted part. The retraction of the shaped punches to its maximum diameter position enables the unimpeded removal of the part from the tool set.
Public/Granted literature
- US20080298996A1 FORMATION OF NON-AXIAL FEATURES IN COMPACTED POWDER METAL COMPONENTS Public/Granted day:2008-12-04
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