the sheet metal chassis in sheet metal processing will definitely undergo the process of welding during processing, except for integrally formed goods. So, what should be paid attention to before and after welding in high-precision sheet metal processing? Before sheet metal processing, it is necessary to know welding. What types of welding are generally classified as: melting welding: argon arc welding machine, CO2 welding, steam welding, manual welding B working pressure welding: welding, butt welding, impact welding C brazing: electric chromium welding, copper wire

Below are the standard welding FAQs

standards before welding of 1. sheet metal processing chassis

1. all raw materials shall not be less than those specified in the engineering drawings, otherwise they shall not be prepared by opening materials.

2. It is stipulated that the flatness of welded channel steel shall not exceed 2/1000, and the total bending degree shall not exceed 0.3 of the total length.

3. Before sheet metal welding, the deformed parts must be straightened and straightened before welding.

4. before welding, welding rods of different sizes, specifications and models shall be used according to the size of parts, the thickness of raw materials, the size specified for welding, etc.

Criteria for 2. Sheet Metal Chassis Welding

1. make welding according to engineering drawings, technology and processing technology regulations;

2. when welding, be sure to make grooves on the grooves. If there are no grooves or weld contours, the grooves should be ground and polished according to the specific circumstances. If grooves must be machined, machining shall be carried out. And report the issue to the head of the unit. 3. During welding, the form and position tolerances of the workpiece shall be ensured. Tolerances for the form and position of non-machined surfaces shall be in accordance with class IT15.