In the field of precision manufacturing, the performance of mold parts directly affects product quality and production efficiency. Traditional mold parts often face problems such as wear, corrosion, and bite, resulting in short service life and high maintenance costs, becoming a bottleneck restricting the improvement of production efficiency. In recent years, the emergence of DLC coating (diamond-like coating) has brought revolutionary changes to precision mold parts. It is like a “shot in the arm”, injecting strong power into it and opening a new chapter of efficient production.
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1，DLC coating: surface strengthening guard with excellent performance
DLC coating is an amorphous thin film material composed of carbon elements. It has the hardness of diamond and the lubricity of graphite. It is known as “the most potential surface engineering material in the 21st century.” Its excellent performance is mainly reflected in the following aspects:
Ultra-high hardness and wear resistance: The hardness of DLC coating can reach 20-40GPa, which is 2-4 times that of traditional mold steel. It can effectively resist wear and extend the service life of molds.
Extremely low coefficient of friction： The friction coefficient of DLC coating is as low as 0.05-0.2, which can significantly reduce friction resistance, reduce energy loss and improve production efficiency.
Excellent chemical inertness: DLC coating has strong resistance to corrosive media such as acids, alkalis, and salts, and can effectively prevent mold corrosion and ensure product surface quality.
Good self-lubricating properties: The DLC coating has a smooth surface and low friction coefficient, which can reduce the adhesion between the mold and the workpiece and reduce the risk of scratches on the product surface.
2,Application advantages of DLC coating on precision mold parts
DLC coating can reduce the friction and adhesion between the mold and the workpiece, reduce defects such as scratches and burrs on the product surface, and improve the surface finish and dimensional accuracy of the product.
DLC coating can reduce friction resistance, reduce energy loss, improve production efficiency and reduce production costs.
DLC coating can give the mold better performance, enable it to be used in more harsh processing environments, and expand the application scope of the mold.
3,Application cases of DLC coating on precision mold parts
stamping die
Injection mold
Die casting mold
Stretching mold
4,DLC coating application prospects
With the continuous development of precision manufacturing technology, the performance requirements for mold parts are becoming higher and higher. As a surface strengthening technology with excellent performance, DLC coating has broad application prospects in the field of precision mold parts. In the future, with the continuous advancement of DLC coating technology and the reduction of costs, its application scope will be further expanded, bringing greater benefits to the precision manufacturing industry.
