MASTERING THREAD ROLLING – ADJUST MACHINE
The last step in proper rolling is executing and adjusting after first test roll. Step 1 – Minor Dia. and Pitch Adjustment Loosen 3 nuts and adjust tool +/-. One witness line is .004”on Minor. Center Pitch. Step 2- Major Adjustment- Adjust pre-roll dia to the...
MASTERING THREAD ROLLING – SETUP PROCESS
The fourth step in proper rolling is setup of the Process. Using sacrifice material- program a .600” length to test roll a .500” long part, Insure the material will not hit faceplate. Pre-turn for rolling = Mean of the Pitch or .465” 30’ chamfer starting at .010” +0.0...
MASTERING THREAD ROLLING – MATERIAL PREPARATION
Step one is important, once I realized it wasn’t posted, I got it posted right away. Why is material prep important with thread rolling? Thread rolling is a cold forming process and the material goes through a state change. With Axial rolling tools this change...
MASTERING THREAD ROLLING – MACHINE SETUP
The third step with proper rolling is the Machine Setup. Mount tool and sweep faceplate OD with an indicator – Rolling requires TIR of .005”
MASTERING THREAD ROLLING – TOOL SETUP
The second step with proper rolling is the Tool Setup. Mill a .250” to 375” flat on the shank within .500” of the head if not already there. The RORO tool is assembled and setup. The rolls are set with a gauge pin to the max Minor less a proprietary calculated amount...
MINI-SERIES OF STEPS TO MASTERING THREAD ROLLING
Step 1: Material Prep Step 2: Tool Setup Step 3: Machine Setup Step 4: Setup Process Step 5: Adjust Machine
STEEL MATERIALS WITH PROVEN ROLLABILITY FOR THREAD ROLLING
Proven rollability for thread rolling material. 45 hardness on the Rockwell C scale is the top of the scale for rolling. Case Hardening Nitriding Cast Iron with an elongation factor great than 8% Cast Steel Free Cutting Heat Treatable High Speed Malleable Iron...
WHICH MATERIAL THREAD ROLLS WELL?
The various attributes of rolled threads are often admired, the materials that can be rolled are seldom outlined in broad terms. Here we outline materials that can be rolled. Steels are nearly all roll-able. Included in the steel family are Structural, Case Hardening,...