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Bolt Tightening - Tohnichi | Your Torque Partner
Torque control method Break point Yield point Elastic zone Plastic zone Axial tension Relational drawing Figure 2-3. Detail drawing Friction on the threaded portion 40% ... Reference literature: "Theory and calculation of threaded fasteners" Akira Yamamoto (Yokendo Co., Ltd.) 34 35
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[SI unit, Metric unit, American unit ] - Tohnichi
www.tohnichi.comChapter1 Torque-2 Torque Units [SI unit, Metric unit, American unit] Main application range of torque units 1 2 5 10 20 50 100200 5001000 [cN・m] 1 2510 20 50 100 200 500 1000 1000 2000 1000 1 2510 20 50 100 1200 500 2510 20 50 100
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www.hexagon.deTightening threaded fasteners is basically an energy transfer process as shown in Figure 1. The area under the torque-angle curve is proportional to the energy required to tighten the fastener. ... Sources of Post-Yield Response 1.4 Elastic Torque-Tension Relationship
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