Piercing of pipe flange processed by CNC lathe, machining center argon arc welding

Outline size：180*180*280   Rough machining of intermediate surface, rough machining of flange machining center, argon arc welding, CNC turning finishing in place, machining of pin hole by four-axis machining center, milling of flat head on both sides

Texture of material：Q235

Measure：Outside micrometer