I have several Aloris insert type tool holders. They all use non- chipbreaker type inserts, but have a combination chipbreaker/holddown clamp. The holdowns have a brazed carbide edge which is adjustable. How close should this edge be adjusted to the cutting edge of the insert? Different setting for aluminum vs. steel?
According to oldjag :
These are the 16N or 16 double-ended (turning and facing) holders? I'm using the 16N (negative rake) with inserts which have a chipbreaker which turns it into an effective positive rake. I normally adjust the chipbreaker clamp to take up the job right where the groove stops.
But This is because I use it for cutting almost anything from time to time. If I were doing production, I would pick a depth of cut and a feed, and then adjust the chipbreaker for the best results under those conditions. Material, DOC, and feed all have an effect on what is the proper setting.
Good Luck, DoN.
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