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Abstract：
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For lifting ring in a product of a company, its structure，material characteristics and production process were analyzed, and according to the requirements of structure, shape and dimensional accuracy for lifting ring as well as assembling accuracy etc., a compound die including three sets of dies for cutting, roll bending and bending was designed. Then, a simple material rack was manufactured as the material rack of progressive stamping die, and the irregular edge materials could be placed on the material rack. Furthermore, the surface of edge material became flat by a simple correction and feeding mechanism, and the simple material rack, the correction and feeding mechanism and the compound die were combined to form a progressive stamping die. In addition, the blow hole was installed in the die, and the lifting ring was blew off the die by high-pressure gas. This set of progressive stamping die for the production of lifting ring has simple structure and low development cost, its feeding mechanism is simple and practical. Then the lifting ring produced meets the actual needs of company, the failure rate is low, and the edge materials of company are effectively used to reduce waste.
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Funds：
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广州华立科技职业学院教师教学创新团队项目（HLZ092005）
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AuthorIntro：
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孙令真(1983－)，男，硕士，副教授，E-mail：sunlingzhen1983@163.com；通讯作者：叶烁（1982－），女，硕士，讲师，E-mail：gdhlxyys@163.com
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Reference：
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