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A North American tool manufacturer is looking to reduce cycle time for the threading products they manufacture. The material is 4340 steel and 35 on the Rockwell C scale. Initially, the product line submitted for review contained 22 parts, nine of them sharing the...
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What size rolls are you looking for? We have axial thread rolls for many size attachments. Size F0 all the way up through F4’s. These are both two and three die sets. We have coated rolls for rolling harder materials while machining. Tell us what material...
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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...
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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...
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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...
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The third step with proper rolling is the Machine Setup. Mount tool and sweep faceplate OD with an indicator – Rolling requires TIR of .005”
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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...
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Step 1: Material Prep Step 2: Tool Setup Step 3: Machine Setup Step 4: Setup Process Step 5: Adjust Machine
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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...
