摘要
以φ400mm轻型平面镜为例,介绍了采用机械减重法制造轻型镜的工艺技术。镜坯的轻量化采用了刚度虽不是最优,但工艺性最好的圆孔结构,并采用专门设计的钻头钻孔,再用氢氟酸消除微裂纹。加工结果表明,该镜的减重比达44.5%,但仍具有足够的刚度,且没有影响加工精度的变形。
With a f400mm lightweight plane mirror as an example, a process and technology for manufacturing lightweight mirror by using mechanical lightening method is presented. A circular hole structure with better stiffness and the best manufacturability is adapted in lightening of mirror blank. The circular holes are drilled by the special-designed drill head and the micro-cracks are eliminated by hydrofluoric acid. The processing results show that the plane mirror still has enough stiffness even if its lightening ratio is as high as 44.5%, and there is no deformation that will affect processing accuracy.
出处
《光电工程》
CAS
CSCD
北大核心
2002年第6期12-16,共5页
Opto-Electronic Engineering
