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I didn't expect a lot of replies, thank you for your active participation. The drill is used on the cnc, and if you switch to the back of the material immediately, delamination will occur. As for Stephan Nelle's reply, you can try the pcd drill bit, we have tested it with a large diameter, and...

Thank you for Compositepro’s reply; We tried several different PCD drill tip configurations, and the drilling results were not ideal; the original low modulus carbon fiber can achieve perfect drilling, but it is not suitable for high modulus; I doubt it is The bore shrunk during machining, or...

Why is unidirectional tape（cfrp） drilling layered?

Thanks for your professional answer, it helped me a lot; thanks. I will carefully read the documents mentioned above

What are the difficulties in machining phenolic resin Aramid Honeycomb (milling)?

anyway Thanks all your replies

First of all, thank you for your replies, which are very useful to me; another question is, what kind of drawing software should I use for the product design of cutting tools? I have seen some cutting tool designs before. They often make some angle changes in the cutting edge. So what software...

I am a fresh graduate student, I want to work in the metal cutting industry, close to cutting tool design; I am very confused, I don’t know any books, videos can help me learn