This workpiece is very difficult to process. I have thought about it for a long time but have not thought of good technology and tooling. Because the workpiece needs to move in a cavity, the inside and outside must cooperate, and the size requirements are very strict. The material is stainless steel weldment, which cannot be annealed and the stress cannot be released. During the machining process, aluminum bronze must be surfacing, which will only increase the stress and make it easier to deform. Furthermore, flanging, hoisting, etc. during the machining process will cause deformation. I hope experts in the community can help me think about whether there are good processing techniques and tooling. Have any friends been exposed to the processing of this type of workpiece? Reply: 1. This piece should meet the drawing requirements after welding. Dimensions (reserved for processing should be reserved) and geometric tolerances meet the requirements. 2. Internally welded rice-shaped support (120 channel steel). Aging vibration removes welding stress. 3. Lift the vertical truck and place it on the turntable. Vertical lathe to adjust the horizontal, vertical and roundness of the piece. And use bolts to securely fasten it to the turntable (the closing position is at the channel steel). 4. After meeting the requirements, mark the machine processing line and proceed with processing (this side is side A; the bottom side is side B). First process plane A (reservation), outer circle, etc. (reservation), with surface A as the benchmark. 5. Turn over the processed and reserved A side so that B side faces up. After the bolts are qualified, they are processed according to the drawing... 6. After the processing is in place, the bronze surfacing process is carried out. After the surfacing process is completed, process the bronze (reserve amount). . 7. Remove the turntable. Perform aging vibration to remove welding stress. Correct the piece again. 8. After passing the test, face B face down. Lift the vertical lathe and align it (based on surface A), and tighten the bolts after passing the test. Carry out machining... Repeat steps 6 to 7. 9. Surface A is completely processed. Turn over B side up. After all processing of side B...processing other parts...complete. .