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中国专利CN201410279607.8本发明公开了一种制造发动机铝材料机匣的方法,所述方法将钛合金管焊接成油路管道嵌铸于航空发动机铝合金机匣中,用以在航空发动机铝合金机匣中形成复杂的油路,最后进行硫酸阳极化处理,得到符合设计要求的所述航空发动机铝合金机匣。本发明提供的制造方法,既避免了不锈钢管嵌铸工艺带来的铸件增重和不能硫酸阳极化处理的不足,又避免了铜管嵌铸腐蚀工艺耗时、耗材的不足。可应用于铸有复杂油路的、具有表面硫酸阳极化要求的航空发动机铝合金机匣的制造。
Chinese patent CN201410279607.8 The invention discloses a method for manufacturing a casing of an aluminum material for an engine. The method comprises the following steps of: welding a titanium alloy pipe into an oil pipeline and embedded in a casing of an aero-engine aluminum alloy for welding the aero-engine aluminum alloy A complicated oil passage is formed in the casing, and finally the sulfuric acid anodizing treatment is performed to obtain the aero-engine aluminum casing which meets the design requirements. The manufacturing method provided by the invention not only avoids the defects of weight gain of the castings and the anodizing treatment which can not be caused by the stainless steel tube casting process but also avoids time-consuming and consumable consumption of the copper tube cast-in corrosion process. It can be used in the manufacture of aero-engine aluminum alloy casings with a complex oil circuit that require the anodizing of the surface sulfuric acid.