我们的返工方案如下：1、首先对四个大孔在图示位置采取激光熔覆技术进行焊

Our rework plan is as follows: <br>1. First, use laser cladding technology to weld the four large holes at the position shown in the figure, with a thickness of about 0.5mm on one side; <br>2. Milling the parting surface of the upper and lower boxes about 0.3 on one side mm; <br>3. After correcting the two sides, install positioning pins, tighten the bolts, and reprocess the four large holes to the drawing requirements, and mill out both sides at the same time.

Our rework solutions are as follows:<br>1, first of all, the four large holes in the illustration position to take laser cladding technology for welding, about one-sided thickening 0.5mm;<br>2, milling on and off the box parting surface single-sided about 0.3mm;<br>3, the two sides after correction, mounted positioning pin, tight bolts, re-machining four large holes to the drawing requirements, while milling out the two sides.

Our rework plan is as follows:<br>1. Firstly, the four large holes are welded by laser cladding technology at the position shown in the figure, and the thickness of one side is about 0.5mm;<br>2. Milling one side of parting surface of upper and lower boxes is about 0.3mm;<br>3. After correcting the two sides, install the locating pins, tighten the bolts, re process the four large holes to the drawing requirements, and mill out the two sides at the same time.<br>