Titanium plate in the forming process and other materials are similar, in the wool, preformed parts surface necessary in some parts of the mold coated with paint and lubricant, in order to reduce the friction between parts and tools, reduce scratches, improve product quality, prolong tool life. Especially in hot forming, the coating not only can alleviate the serious friction between the parts and the mold at high temperature, but also has the role of protecting the surface of the parts, avoiding and reducing oxidation.
In summary, the purpose of titanium plate stamping forming coating is:
1. Improve the surface quality of parts;
2. Protect titanium parts from oxidation;
3. Reduce the pressure required for forming;
4. Prolong the life of the mold;
5. Control the flow of materials in the deformation process.
Coatings should generally have the following properties:
1. Good corrosion resistance, does not contain harmful ingredients, will not cause pollution to the material;
2. Has a certain cohesiveness, easy to coating;
3. There is enough strength, the coating is not easy to be damaged when used;
4. Has good lubrication performance;
5. Easy to clear;
6. Harmless to the health of the operator;
7. Low cost.
Therefore, titanium alloy plate manufacturers can be divided into two categories according to the different conditions of use, that is, normal temperature forming (cold forming) with paint and high temperature forming paint.