CNC machining often results in burr formation, but why are there so many burrs when machining stainless steel?
1. Stainless Steel Material Factors:
Stainless steel may contain elements such as chromium, nickel, molybdenum, titanium, and nitrogen. It is relatively soft, and its nickel content is high. During high-temperature cutting, this can cause tool sticking, leading to increased burrs.
2. Tool Improvement:
Insufficient tool sharpness significantly impacts burr formation. As the tool wears down, the tool tip radius increases. After a certain period of use, the cutting edge can be replaced. In precision parts machining, rounded chamfers are even more effective at reducing burrs.
Under the same cutting conditions, diamond tools are more effective at suppressing burr formation than other tools.
3. Tool Tip Entry and Exit Sequence:
Not only does the burr size increase in the tool exit direction, but burrs can also form in the tool entry direction.
4. Modifying Milling Parameters:
Increasing the feed rate and adjusting the direction, etc. Burrs not only reduce the precision and quality of parts, affecting their functionality, but can also sometimes cause safety accidents. Deburring is a non-productive process, and improper removal can lead to the scrapping of the entire product, resulting in economic losses.
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