我们的返工方案如下：1、第一步，对四个大孔在图示位置采取激光熔覆技术进

Our rework plan is as follows: <br>1. The first step is to use laser cladding technology to weld the four large holes at the position shown in the figure, which is about 0.5mm thicker on one side. According to our previous <br>processing experience, this type of welding affects the part itself There is almost no deformation. <br>2. The second step is to mill the parting surfaces of the upper and lower boxes to a thickness of about 0.3mm on one side; <br>3. Finally, correct the two sides of the box in place, install positioning pins, tighten the bolts, and reprocess four more Large holes to the drawing requirements, and milling the assembly datum plane on both sides of the box

Our rework solutions are as follows:<br>1, the first step, four large holes in the illustration position to take laser cladding technology for welding, about one side thickened 0.5mm, according to our past.<br> With processing experience, this welding produces little deformation to the part itself.<br>2, the second step, milling up and down the box parting surface, one side about 0.3mm thickness;<br>3, finally, the two sides of the box body correction in place, loaded with positioning pins, tight bolts, re-machining four large holes to the drawing requirements, while milling the two sides of the box assembly plane.

Our rework plan is as follows:<br>1. In the first step, the laser cladding technology is adopted to weld the four large holes at the position shown in the figure, and the thickness of one side is about 0.5mm<br>Processing experience, this kind of welding on the parts themselves almost does not produce deformation.<br>2. In the second step, the parting surfaces of the upper and lower boxes are milled, and the thickness of one side is about 0.3mm;<br>3. Finally, correct the two sides of the box in place, install the positioning pins, tighten the bolts, re process the four large holes to the drawing requirements, and mill the assembly datum plane on both sides of the box.<br>