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Research and Optimization of Extrusion Tap Structure Based on Numerical Simulation and Experimental Analysis.
Yi Tao1, Nian Wan2, Daoming Xu1
1Marine Design & Research Institute of China, Shanghai 200011, China.
Materials (Basel, Switzerland)
|April 27, 2024
Summary
Optimizing tap structural parameters significantly improves internal thread quality. This study reduced machining torque and temperature, enhancing thread hardness and surface integrity for high-strength steel.
Area of Science:
- Materials Science
- Mechanical Engineering
- Manufacturing Processes
Background:
- Thread processing quality is critical for mechanical component performance.
- Existing thread machining methods face challenges in high-strength steel applications.
- Understanding tap forming mechanisms is key to improving thread quality.
Purpose of the Study:
- To systematically analyze the thread forming mechanism and influencing factors.
- To optimize tap structural parameters for enhanced internal thread quality.
- To reduce torque and temperature during the thread extrusion forming process.
Main Methods:
- Finite element analysis (FEA) to simulate forming processes.
- Experimental validation of simulation results.
- Orthogonal optimization for determining optimal tap parameters.
Main Results:
- Thread extrusion forming is a net forming process involving plastic deformation and material flow.
- Optimized parameters reduced maximum torque by 22.86% and temperature by 20.31%.
- Hardened layer depth increased by 0.05 mm; tooth hardness increased at root (10 HV0.2) and top (5 HV0.2).
Conclusions:
- Optimized tap structural parameters yield superior internal thread quality.
- The study provides a method for improving thread extrusion forming efficiency and quality.
- Enhanced thread properties contribute to improved component reliability and performance.
