减小化学铣切圆角工艺方法研究

Research on Processing Method of Decreasing Chemical Milling Fillet

通过分析化学铣切圆角对减重的影响,表明减小化铣圆角有利于化铣减重。将一个化铣深度分成二次化铣,化铣到规定深度一半时,对化铣网格的肋条顶部和侧面进行保护,肋条侧面在逐步铣切作用下,其侧面趋于垂直,形成的化铣圆角只有原工艺的一半,化铣圆角部分的重量也只有原工艺的25%。采用新工艺方法后可大大减小化铣圆角,同时也能提高肋条精度,满足化铣减重要求。

Analyzing the influence of chemical milling fillet on weight loss indicated that lessening chemical milling fillet is conductive to weight loss. Separating one chemical milling depth course into twice chemical milling process was studied, that when half of designated chemical milling depth was finished, protecting the top and side of chemical milling rib, the side of rib tended to be vertical after another chemical milling process, the new chemical milling fillet was only a half than the usual, also weigh of chemical milling fillet is almost 25%of the previous. New processing method could deeply decrease chemical milling fillet, and is benefit to improve accuracy of chemical milling rib, then satisfies more weight loss of chemical milling process .