摘要
针对钛合金薄壁管壳工件加工时和加工后变形,而查不到解决方法的文献的情况,经反复试验,总结出一套热处理工艺。粗加工和半精加工之后进行高温热处理,消除应力以利于下道工序加工;精加工后进行低温循环冲击热处理,以稳定完工尺寸公差;并且从半精加工开始采用真空热处理,以防工件表面氧化。实践表明:工艺加工方法消除零件加工变形,稳定加工尺寸,使管壳工件合格率达到96%以上,达到了保证工件尺寸精度及形位公差的目的。
As the problem of transformation occurring when the thin-walled Titanium tube was processing and processed,we fished out a kind of heat treatment from lots of repeating experiments to solve it, despite of that we could not find any ideas from the documents. After rough machining and semi-finish machining, the thin-walled titanium was heat treated with high temperature to eliminate the stress, that could make better condition for the next procedure. Repeating low temperature heat treatment after finishing could stabilize the dimensional tolerance. Moreover, using the vacuum heat treatment to deal with the titanium thin-walled tube after it＇s semi-finishing would avoid the surface scale. It had been found that using this processing skill could eliminate the transformation of workpieees, stabilize the size and improve the eligibility of yield tube to above 96 %, which achieved the target of guaranteeing the accurate size of workpieces and the tolerance of its form and position.
出处
《探测与控制学报》
CSCD
北大核心
2011年第2期60-62,共3页
Journal of Detection & Control
关键词
钛合金薄壁管壳
加工变形
热处理
titanium thin-walled tube
deformation of machining
heat treatment
