What are the differences and differences between HSS milling cutters and Carbide milling cutters in terms of materials, structure, and performance? In which machining situations should HSS tools be used, and in which cases should Carbide tools be used?
1. Differences between HSS End Mill and Tungsten Carbide End Mill
1. Differences in materials.
HSS End Mill is made of high-speed steel bars, usually made of M42 material, with a vanadium content of not more than 1% and a cobalt content of 8%.
Carbide End Mill is a CNC tool made by Tungsten Carbide.
2. Differences in processing performance.
HSS cutting tools have a room temperature hardness of 62-70HRC, while carbide cutting tools have a room temperature hardness of 89-94HRC. The heat resistance of the tool surface reaches 1000 ℃, and the cutting speed of carbide can be increased by 50-100% compared to HSS. The durability of the tool can be improved by 2-10 times; Compared to HSS cutting tools, carbide cutting tools are more suitable for high-speed, efficient, and high-temperature processing.
carbide cutting tools High melting point, high hardness, high elastic modulus, good chemical stability and thermal stability. Its hardness, wear resistance and heat resistance are far better than HSS cutting tools.
Hardness: Carbide tool 89~94HRC. HSS tools 62-70HRC.
Heat resistance: Carbide tools at 800-1000 ℃, HSS tools at 600-650 ℃.
Wear resistance: The wear resistance of Carbide tools is 15-20 times that of HSS tools.
Cutting speed: The speed of the Carbide tool is 4-10 times that of the HSS tool.
2. When will HSS milling cutters and Carbide milling cutters be used?
Not all processing situations require the use of Carbide milling cutters, as the cost control of each processing process varies, and various cutting tools can be flexibly used
When the machining hardness is low, the machining accuracy requirements are not high, and low-end machine tools are used, the quantity of products is small, and the profit is low, HSS cutting tools can be used. Even for some difficult to machine materials, HSS tools can also be competent, but their cutting speed, wear resistance, and durability are not enough
I think in most cases, especially during high-speed, efficient, and large-scale machining, it is more necessary to use carbide cutting tools, even ceramic and diamond tools: the high cost of a single tool does not necessarily mean high processing costs; In many cases, using “high priced” tools results in lower processing costs than HSS tools.
Post time: Jun-03-2023