Panza
Stainless
- Joined
- Oct 23, 2005
- Location
- Lillehammer, Norway
Mazak lathe
Kitagawa BB208 chuck with OE hard jaws
Hot rolled 4140 HT 1.5" and smaller
Max recommended hydraulic pressure set
Chuck is free moving and free of junk inside
The only way I can get this to not slip back in the jaws is cutting the feed down to 0,2mm/rev (8 thou) and DOC down to 2mm (78thou). I would like to run almost double the feed and DOC. I also tried putting wet&dry paper between the bar and the chuck but it did not help much.
Is this just how it is for everyone or is there anything else to change ?
Are there hard jaws available from somewhere that has a sharp diamond knurl ? Marking the stock is not an issue.
Kitagawa BB208 chuck with OE hard jaws
Hot rolled 4140 HT 1.5" and smaller
Max recommended hydraulic pressure set
Chuck is free moving and free of junk inside
The only way I can get this to not slip back in the jaws is cutting the feed down to 0,2mm/rev (8 thou) and DOC down to 2mm (78thou). I would like to run almost double the feed and DOC. I also tried putting wet&dry paper between the bar and the chuck but it did not help much.
Is this just how it is for everyone or is there anything else to change ?
Are there hard jaws available from somewhere that has a sharp diamond knurl ? Marking the stock is not an issue.