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The effects of forming parameters on conical ring rolling process.
Wen Meng1, Guoqun Zhao1, Yanjin Guan1
1Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong 250061, China.
Thescientificworldjournal
|September 10, 2014
Summary
This study optimized the radial conical ring rolling process (RCRRCDS) using a 3D FE model. Increasing the outer radius growth rate improved material uniformity, leading to optimal process parameters.
Area of Science:
- Materials Science and Engineering
- Mechanical Engineering
- Manufacturing Processes
Background:
- Radial conical ring rolling is a complex manufacturing process.
- Optimizing parameters for uniform material properties is crucial.
- Existing models may not fully capture thermomechanical effects.
Purpose of the Study:
- To establish plastic penetration and biting-in conditions for RCRRCDS.
- To determine optimal mandrel feed rates.
- To investigate the effects of process parameters on material uniformity.
Main Methods:
- Development of a coupled 3D thermomechanical finite element (FE) model for RCRRCDS.
- Analysis of equivalent plastic strain (PEEQ) and temperature distributions over time.
- Parametric study on outer radius growth rate and roll sizes.
Main Results:
- PEEQ and temperature distributions were found to be non-uniform across the rolled ring.
- Higher temperatures were observed in specific cross-sectional zones and at the ring's center.
- Increased outer radius growth rate enhanced PEEQ and temperature uniformity.
Conclusions:
- The study identified key factors influencing material uniformity in RCRRCDS.
- Optimal ranges for outer radius growth rate and roll sizes were determined.
- The FE model provides a valuable tool for predicting and optimizing RCRRCDS.
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