サーボプレスによるA1070の衝撃押出し成形とその成形解析

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概要

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• Experimental and analytical studies were carried out to clarify servo press slide motion preferable for obtaining uniform cups by one operation of impact extrusion. Cylindrical billets of aluminium (A1070) were extruded into cups by a servo press. The inner and outer diameters were measured along the longitudinal axes. The effects of servo press slide motion on billet temperature were investigated by finite element method. The following results were obtained: 1) Heat generation by processing had a great influence on the accuracy of cup diameters. 2) A constant sliding speed made diameter small at the bottom of cup. 3) By slowing down the slide speed in the middle of the extrusion process, the dimensional accuracy was improved.

著者

• 白川 信彦

  （地独）大阪府立産業技術総合研究所

• 四宮 徳章

  （地独）大阪府立産業技術総合研究所

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• サーボプレスによるA1070の衝撃押出し成形とその成形解析

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