|
Abstract：
|
|
The near-net-shape forming process of warm extrusion and warm stamping was employed to manufacture the precision forgings for the complex and thin-wall shell body made of 2A12 aluminium alloy.By heating cylinder billets under the condition of heating temperature of(400±20)℃ and heating-up for a period of time,employing the lard to lubricate the die,the perform was done by warm extruding on the YX32-100 four-column hydraulic press and forgings were made by warm stamping on J23-63 C-frame press.The forgings by this near-net-shape forming process not only has lower surface roughness,higher dimensional accuracy and dimensional stability,but no defect,such as sand hole,overlap,crack and flash etc..The forgings can be satisfied with the technical data,such as surface quality,dimensional accuracy and fitting tolerance,etc.,except for small post machining of both ends of the forgings.
|
|
Funds：
|
|
南京工程学院引进人才科研启动基金项目(KXJ08137)
|
|
AuthorIntro：
|
|
|
|
Reference：
|
[1]《有色金属及其热处理》编写组.有色金属及其热处理[M].北京:国防工业出版社,1981.
[2]薛永春.金属等温变形工艺[M].北京:机械工业出版社,1992.
[3]吴诗淳.冷温挤压技术[M].北京:国防工业出版社,1995.
[4]张质良.温塑性成形技术[M].上海:上海科学技术文献出版社,1986.
[5]林新波,王艺,张质良,等.铝合金自行车后花毂锻件温挤压成形技术研究[J].锻压技术,2008,15(4):157-161.
[6]王真,单德彬,薛克敏,等.筒形机匣等温精锻时模具的加热及有限元热场分析[J].锻压技术,1996,21(4):45-49.
|
|
Service：
|
|
【This site has not yet opened Download Service】【Add
Favorite】
|
|
|
|
Copyright Forging & Stamping Technology.All rights reserved