What kind of workpiece and processing type are suitable, and the workpiece is suitable for tool processing. This is a common sense of CNC machining, which is a lot of initiator needs to understand. Generally, it is divided into four aspects to choose a tool.
(1) Hardness and wear resistance. Whether it is a milling cutter or a car knife, the hardness of the material must be higher than the hardness of the workpiece material, and generally requires more than 60HRC. The higher the hardness of the milling cutter and Precision CNC Machining the car knife, the longer it.
(2) Strength and toughness. Milling cutters or core knives should have high strength and toughness to withstand cutting force, impact and vibration.
(3) Heat resistance. The tool material can withstand high cutting temperatures, with good antioxidant capacity.
(4) Process performance and economy. The tool material should have good forging properties, heat treatment performance, welding performance, grinding and processing performance, etc., and to pursue high performance price ratio.
The workpiece processing must be more in-depth to tools to use tools, and the tool material for CNC machining must be selected according to the workpiece and processing properties of the machining. The selection of milling cutters or cores should be reasonably matched with processing objects, and the cutting tool material and the machining object match, the high-hardness tool is suitable for roughing, and the hardness is relatively low. The tool is suitable for finishing. It mainly refers to the mechanical properties, physical properties and chemical properties of the two, to achieve the longest tool life and maximum cutting productivity.