With the development of society, people have higher and higher requirements for automobiles, and relatively speaking, the quality requirements for automotive metal stamping parts are also getting higher and higher. Most of the automotive metal stamping parts are made of high-strength plates, whether thick or high The strength steel plate will withstand extremely high forming stress during the stamping and forming of the workpiece, and the problem of surface strain on the workpiece cannot be avoided. Therefore, the automotive mold industry is facing higher challenges. How to solve the problem of workpiece strain becomes the mold industry An important subject, so how to improve the strain of metal stamping parts?
1. Immerse the die of automobile hardware stamping parts in absolute ethanol for 1-2 hours, and then use ultrasonic treatment for 5 minutes;
2. The processed automobile stamping die is soaked in alanine solution for 2 hours, then taken out, washed with deionized water, and dried to constant weight;
3. The processed auto metal stamping die is placed in an active carburizing medium, heated to 750-780 ℃, kept for 30 minutes and then cooled to 550-560 ℃, kept for 40min, soaked in 70-80 ℃ quenching oil, soaked One hour, then take it out, after the surface is cleaned, dry it, heat it to 150-160 ℃, and keep it for 2 hours; the carbon oxidation ratio of the active carburizing medium is 3.2-3.5;
4. Put the processed automotive stamping die into the phosphating solution heated to 50 ° C for 3.5 minutes, remove and rinse with water until the pH of the water returns to neutral, and put it in a constant temperature oven to dry for 1 hour. The temperature in the constant temperature furnace is 100 ℃, then take it out, and naturally cool to room temperature;
