Such as body damage analysis, body measurement, body sheet metal shaping, stretching correction, stress relief welding, body accessories assembly adjustment, etc.
Automotive sheet metal material requirements:
1, the sheet metal material must have good plasticity. Must have the ability to produce permanent deformation under the action of external force without being destroyed. For cold-worked parts, good cold plasticity is required, such as stamping parts of automobile parts; For hot working parts, good thermoplasticity is required, such as hot forgings, spring steel plates, hot rivets, etc.
2. Good weldability. Many automobile sheet metal parts are welded together by spot welding, oxygen welding, arc welding or gas shielded welding, so it is required that the sheet metal parts must have good welding performance. This is especially important in automobile maintenance and repair. Materials with good weldability have high welding strength and low cracking tendency.
3. Low price, economy and practicality. For any part of an automobile, the economy should be considered under the condition of meeting the working conditions. You can use ferrous metals instead of nonferrous metals; If you can use non-ferrous metals, never use precious metals. The service life of automotive sheet metal parts should be compatible with the service life of other automobile parts.
4. Good chemical stability. Most automobile panels work outdoors, often in contact with water and steam, especially mufflers, and often work at high temperatures and corrosive gases. This requires that sheet metal parts must have good chemical stability, which requires not only strong corrosion resistance and rust prevention ability at room temperature, but also that they will not be corroded or deformed at high temperature or in the sun.
5. Good dimensional accuracy and internal quality of the plate. The dimensional accuracy and internal quality of sheet metal have great influence on sheet metal processing, especially on molded parts.