The Radiation Belt Rolling Wave Process Simulation And Optimization Design Of Rolling Wave Knife

Radiation belt is the most important part of the heat radiator and its manufacturing quality has a very important influence on heat dissipation performance. Rolling wave knife is an important component of Radiation belt forming, its precision is the key factor to ensure the Radiation belt geometric parameters with machining accuracy, For a long time, rolling knife design lacks the support of scientific theories, leading to Radiation belt shape inaccurate, therefore, It has important practical significance to research mechanism of Radiation belt forming process and the Rolling Wave Knife optimization design,This article applies the finite element analysis method to simulate Radiation belt forming process, provides the theoretical foundation and basis for improving Radiation belt forming precision and Rolling Wave Knife design. the main work in the paper is as following:1.Introduces the finite element technology and the structure of Radiation belt, analysis of the impact of heat band structure parameters on thermal performance; introduces the research status of rolling wave knife design, and points out the existing problems of the current design of rolling wave knife.2.Introduces the processing equipment and processing technology of radiation belt. Mechanism for metal forming and heat with rolling waves forming process is analyzed.3.Using finite element analysis software Ansys Workbench build rolling wave knife with aluminum foil engagement model to simulate the Radiation belt forming process, Researching and analyzing forming process with aluminum foil heat stress, strain and rolling waves tooth top arc stress distribution. the results showed that: extrusion between rolling wave knife tooth top arc and aluminum foil the disengagement process is the main reason for Radiation belt shape inaccurate,It will make radiation belt get larger radius of curvature and asymmetric waveform.4.Study of the relationship between the friction coefficient and the size of the residual stress after radiation belt forming. Select conducive friction conditions to radiation belt forming expand the structure optimization for rolling wave Knife.and make simulation comparative analysis, The analysis results showed that: after optimization tool in contact with the rear end of the waveform shaping aluminum foil time of 0.005 s, than before optimization reduce by 54%, the left and right sides of the residual stress asymmetric waveform length reduced from five to two grid length, optimization of residual stress distribution compared with previous asymmetric length decreased by 60%, The symmetry on both sides of the plastic deformation has been effectively improved. 5.Rolling wave of knife structure optimization program is verified by experiment, verification results show that the symmetry and arc radius of the Radiation belt machined by optimized rolling wave have a higher accuracy, precision can meet the market demand, Verified that the optimization scheme and analysis methods are correct.