What should be done before the quality inspection of stamping parts

Dalian stamping parts used for bending materials should have sufficient plasticity, lower yield strength and higher elastic modulus. Among them, the material with good plasticity is not easy to crack, and the material with lower yield strength and higher elastic modulus has smaller resilience. 3. The material used for deep drawing should have better plasticity, lower yield strength and hardness, and larger directivity coefficient of plate thickness.

Among them, materials with high hardness are difficult to deep drawing; materials with small yield ratio or large directional coefficient of plate thickness are easy to deep drawing. It is necessary to avoid short circuit and short connection when stamping parts are used. In the second time of ultrasonic surface treatment.

Before the quality inspection of the stamping parts, the ultrasonic surface cleaning technology is used again to remove the residues left by shot peening treatment. After completing all the above operations, the steel sheet becomes a stamping part through the stamping workshop, and the stamping part becomes a white-skinned vehicle body through the welding workshop.

The steel chassis, door, top cover, floor, engine hood, wing plate are welded together, which is equivalent to the skeleton of the whole vehicle. There are many assembly positions on the chassis, door, top cover, floor, engine hood, wing plate, and so on. There are many assembly nuts, assembly holes and so on. These metal stampings are welded together to brush the primer, which is the legendary white body. After painting, a car will leave the factory with a lamp, seat dashboard, carpet and so on.