During the forming process of titanium plate, like other materials, it is often necessary to apply coatings and lubricants to the surface of the raw material and pre-formed parts, and, if necessary, to certain parts of the mold, to improve the forming effect. This can reduce the friction between parts and tools, lower the probability of surface scratches on parts, thereby improving product quality and extending the service life of tools. Especially during hot forming, the role of coatings is more significant. It can not only alleviate the severe friction between parts and molds at high temperatures, but also protect the surface of parts, avoiding and reducing the occurrence of oxidation phenomena.
In summary, the use of coatings in titanium sheet stamping mainly serves the following purposes:
Firstly, improve the surface quality of the parts. By the lubrication and isolation effect of the coating, the direct contact and friction between the surface of the parts and the mold are reduced, making the surface of the parts smoother and smoother, and improving the appearance and performance of the product.
Secondly, protect titanium parts from oxidation. During the high-temperature the forming process of titanium plates, titanium parts are prone to react with oxygen in the air and oxidize. Coatings can form a protective film on the surface of the parts to isolate oxygen and prevent oxidation.
Thirdly, reduce the pressure required for forming. Coatings can reduce the friction between parts and molds, thereby reducing the pressure required during the forming process of titanium plate, which helps to reduce equipment energy consumption and wear, and improve production efficiency.
Fourthly, extend the lifespan of the mold. Due to the reduction of friction and wear between parts and molds by coatings, the service life of molds is extended, and the frequency and cost of mold replacement are reduced.
Fifthly, control the flow of materials during the deformation process. Coatings can affect the flow direction and velocity of materials in molds, thereby better controlling the shape and dimensional accuracy of parts.
To achieve the above objectives, coatings should generally have the following properties:
Firstly, it should have good anti-corrosion performance and be free of harmful components, which will not cause pollution to the material. This can protect the parts from corrosion and ensure the quality and safety of the product.
Secondly, the coating needs to have a certain degree of adhesion and be easy to apply. Good adhesion can ensure that the coating adheres firmly to the surface of parts and molds, and is not easily peeled off, while easy coating can improve production efficiency.
Furthermore, the coating should have sufficient strength to prevent damage to the coating during use. During the forming process of titanium plate, the coating will be subjected to certain pressure and friction, and sufficient strength can ensure the integrity of the coating and continues to function.
At the same time, the coating should have good lubrication performance. This is one of the core properties of coatings, and good lubrication performance can effectively reduce friction and lower forming pressure.
Additionally, the paint should be easy to remove. After the forming process of titanium plate, the coating needs to be easily removed from the surface of the part for subsequent processing and handling.
Moreover, coatings should be harmless to the health of operators. During the production process, operators will come into contact with coatings, and harmless coatings can ensure the health of operators.
