M. Moore
Titanium
- Joined
- Jun 8, 2007
- Location
- Vancouver Island, B.C. Canada
I have just switched over from acetylene to propane for my cnc torch table.
I am getting very good quality cuts when doing flat surfaces. Even better quality than the acet, which is surprising because the acet was very good.
The problem occurs when I am doing an angled cut, the oxy cutting jet seems to sputter or miss for a split second creating a very rough cut and every four to six inches or so I actually lose the cut, which is really annoying.
I am cutting 3/8" plate. First I roll the plate to a gentle radius and then cut a window out of the inside, I cut it all in one setting so the top and bottom cuts are square to the plate and the sides are angled ( 15-20 degrees), I didnt measure the angle it is just a guess and I do different parts which are rolled to different diameters.
So I tried to increase the temp, I tried to slow down the feed speed, I increased the oxy pressure, I tried different heights above the work and nothing I did made any difference. I replaced the tip with a brand new tip, no difference, I tried the next larger tip size, no difference. Is there a pulling my hair out emoji?
Eventually when I finish the angled section and start cutting square again (on the same part) it cuts fine. This problem takes a lot of grinding to remedy and is a real time waster.
So any tips for angled cutting would be very welcome. It seems like a preheat problem but slowing down the feed should solve that issue, it did not.
Hopefully I have included enough information.
Thanks in advance for the help,
Michael
I am getting very good quality cuts when doing flat surfaces. Even better quality than the acet, which is surprising because the acet was very good.
The problem occurs when I am doing an angled cut, the oxy cutting jet seems to sputter or miss for a split second creating a very rough cut and every four to six inches or so I actually lose the cut, which is really annoying.
I am cutting 3/8" plate. First I roll the plate to a gentle radius and then cut a window out of the inside, I cut it all in one setting so the top and bottom cuts are square to the plate and the sides are angled ( 15-20 degrees), I didnt measure the angle it is just a guess and I do different parts which are rolled to different diameters.
So I tried to increase the temp, I tried to slow down the feed speed, I increased the oxy pressure, I tried different heights above the work and nothing I did made any difference. I replaced the tip with a brand new tip, no difference, I tried the next larger tip size, no difference. Is there a pulling my hair out emoji?
Eventually when I finish the angled section and start cutting square again (on the same part) it cuts fine. This problem takes a lot of grinding to remedy and is a real time waster.
So any tips for angled cutting would be very welcome. It seems like a preheat problem but slowing down the feed should solve that issue, it did not.
Hopefully I have included enough information.
Thanks in advance for the help,
Michael