1. Keep the work place and work surface clean at all times, and regularly maintain the tools used in the production.

2. Familiar with the standardized operation of various tools and strengthen their awareness of safety protection.

3, the product drawings should be detailed and clear, pay attention to the workpiece material, process requirements, process structure.

4. According to the size requirements of the drawing, pick (or cut) and check the surface for damage, and determine the treatment plan, clean the material type, burr, check the size and angle, pay attention to surface protection work, involving punching, sinking For the work, the countersink should be hand in hand with the corresponding, and ensure the aesthetics.

5. During the tailor welding, it is necessary to ensure that the smooth surface is flat, and the spot cannot be spot welded at the female corner. For the work after tailor welding, the product size, angle, and diagonal line should be checked before the welding is added.

6. The welding process is different according to each master's technique. Be sure to distinguish between the smooth surface to avoid the occurrence of defective products caused by the fire on the bottom line or the glossy surface at the negative angle. The entire welding process needs to consider thermal deformation and welding bead. No pores, no cracks after grinding, do not expose the welding slag to the bottom, affecting the level of installation. Inner spot welding should pay attention to where the mill can cut.

7. During the welding process, it is inevitable that it will be deformed due to heat. Before grinding, the workpiece should be adjusted to the desired level, and cut horizontally and vertically to meet the requirements of the drawing.

8. Grinding can be divided into rough grinding, medium grinding and fine grinding.

Coarse grinding: first confirm that the weld bead of the workpiece can be leveled before and below. The sand grinder is installed on the angle grinder to grind the slag deposits at the welding place to the surface. Use the hand as a reference for the concave part, and pay attention to heat deformation at all times. Cooling solution can be applied at appropriate time.

Medium grinding: The roughened workpiece needs to be ground and leveled. The methods include flocking plates and flocking pieces for processing. The flocking plates or flocking pieces (80 # or 120 #) must cover the front wear marks by the rear grinding.

Fine grinding: This process is the end of the entire production process. The 320 # or 400 # grinding discs have a different grinding method than the previous two, and it should be noted that the edge angle of the workpiece must be straight and the safety angle The inner corner of the female file is straight.

9. After grinding, the workpiece should be self-inspected, and it can be sent to the next process after confirmation. (Brushed or polished)