摘要
研究了用空心铸锭挤压管材时在镦粗过程中穿孔针的受力及变形情况。结果表明 ,此时穿孔针主要承受弯曲 应力作用 ,并产生弯曲变形 ,从而造成挤出管材前端产生偏心 ,并对穿孔针的寿命带来不利影响。
Mandrel forcing and deformation during upsetting when tube is extruded by hollow ingot are researched in the article The result shows that mandrel bears bending stress and causes bending deformation, thus causes eccentricity in front end of the extruded tube,the life of the mandrel can be reduced
出处
《铝加工》
CAS
2003年第6期4-8,共5页
Aluminium Fabrication
