[求助]请教此类筒身如何成型?

twhyxgs

请教此类筒身如何成型?
拉伸?胀形?
焊接?(球形?)
<img src="attachments/dvbbs/2004-3/200432517222218540.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-3/200432517222218540.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

[此贴子已经被作者于2004-3-25 17:22:26编辑过]

Andrai

<P>拉延</P>

yhlhg

<P>旋压也可以 只是效率太底了点</P>

lanfs139

具體情況具體分析，有的拉深完後還得脹形的