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Recent content by Ray.Rocha

  1. R

    4140 QT 45HRC speeds feeds and inserts

    I kept the original transmission. so I will go shopping for that insert. thanks guys
  2. R

    4140 QT 45HRC speeds feeds and inserts

    I will try that tomorrow I have some actual 4140 QT that is about 30-35 HRC that I need turn an downhole tool part. Maybe there is a point that it will cut cooler chips above 400. I did start with those numbers I think. I have moved them around so much I cant be sure. but I used the website...
  3. R

    4140 QT 45HRC speeds feeds and inserts

    I have been turing a part for a little while and am dissapointed in my MRR, I see companies like Titan CNC that are doing fantastic MRRs and feel Like I should be doing better. Specifically my material is drill stem used in deep hole oil drilling, to the best of my knowledge it is 4140 with a...
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