精密成形工程
精密成形工程
정밀성형공정
METAL FORMING TECHNOLOGY
2014年
6期
137-139
,共3页
刘金昌%王秋妹%郭元庆%邱建国
劉金昌%王鞦妹%郭元慶%邱建國
류금창%왕추매%곽원경%구건국
温挤压%热挤压%过温挤压
溫擠壓%熱擠壓%過溫擠壓
온제압%열제압%과온제압
warm extrusion%hot extrusion%over-temperature extrusion
目的:研究小体积毛坯的温挤压成形工艺。方法介绍了温挤压和冷、热挤压工艺的特点。通过对小体积毛坯进行温挤压工艺试验,发现温挤压工艺的小体积毛坯温度降低较快,较难挤压成形,对模具寿命影响很大。提出过温挤压工艺方案,并对一种典型的小体积毛坯进行了试验。结果采用过温挤压工艺表面质量与温挤压工艺的表面质量没有明显区别。温挤压工艺可以生产出表面高质量的小体积毛坯。结论过温挤压工艺的提出对温挤压技术进行了补充,为小体积毛坯的制造提出了一个可行的工艺方案。
目的:研究小體積毛坯的溫擠壓成形工藝。方法介紹瞭溫擠壓和冷、熱擠壓工藝的特點。通過對小體積毛坯進行溫擠壓工藝試驗,髮現溫擠壓工藝的小體積毛坯溫度降低較快,較難擠壓成形,對模具壽命影響很大。提齣過溫擠壓工藝方案,併對一種典型的小體積毛坯進行瞭試驗。結果採用過溫擠壓工藝錶麵質量與溫擠壓工藝的錶麵質量沒有明顯區彆。溫擠壓工藝可以生產齣錶麵高質量的小體積毛坯。結論過溫擠壓工藝的提齣對溫擠壓技術進行瞭補充,為小體積毛坯的製造提齣瞭一箇可行的工藝方案。
목적:연구소체적모배적온제압성형공예。방법개소료온제압화랭、열제압공예적특점。통과대소체적모배진행온제압공예시험,발현온제압공예적소체적모배온도강저교쾌,교난제압성형,대모구수명영향흔대。제출과온제압공예방안,병대일충전형적소체적모배진행료시험。결과채용과온제압공예표면질량여온제압공예적표면질량몰유명현구별。온제압공예가이생산출표면고질량적소체적모배。결론과온제압공예적제출대온제압기술진행료보충,위소체적모배적제조제출료일개가행적공예방안。
Objective To study the warm extrusion forming process of small-volume blank. Methods Process character-istics of warm extrusion, cold extrusion and hot extrusion were introduced. Through the warm extrusion forming process test on the small-volume blank, it was found that the temperature decrease of the small-volume blank prepared by the warm ex-trusion process was relatively fast, leading to difficulty in extrusion forming, which had a large impact on the die life. Therefore, over-temperature extrusion process program was proposed, and a typical small-volume was tested. Results There was no significant difference in the surface quality between the products prepared by the over-temperature extrusion process and the warm extrusion process. Over-temperature extrusion process could produce small-volume blank with high surface quality. Conclusion The proposal of over-temperature extrusion process was supplementary to the warm extrusion technology, and provided a feasible process program for the manufacturing of small-volume blank.