- 1). Place the material to be threaded in the chuck of the CNC lathe. The program will automatically thread the end of the round stock using the parameters in the program. Make sure you have enough clearance past the intended area for threading as the tool will go past that spot by up to half an inch.
- 2). Place the outer dimension cutting tool and threading tool in the machine. Place them in the numbered tool slot dictated by the program. The machine will switch to the designated tool and cut the material using the information in that particular line of code.
- 3). Program the machine to thread the material. The control will automatically set the speeds and feeds of the tools based on the material. Speeds will be slower for steels and faster for aluminum and brass.
- 4). Run the program and test the threads using go/no go gauges. This will let you know if you need to make any adjustments based on tool wear. You can do this in the program or on the tool offsets page on the computer control.
- 1). Place the material to be threaded in the lathe chuck. Turn the chuck key clockwise to tighten the jaws. Make sure you have ample clearance past the area to be threaded for the die. You will use a hand tap on the machined rod to create the threading manually.
- 2). Cut the area to be threaded to the major dimension. This is the outer dimesion of the thread. The die will create the minor diameter when you thread the material. The minor dimension is the bottom of each of the individual threads.
- 3). Lock the chuck by placing the manual lathe in neutral gear. Place a die in a threading handle and thread the rod while it is still in the lathe chuck. Turn the threading handle clockwise to cut the thread, adding tapping fluid every couple of turns for lubricant to make the tapping process easier.
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