Optimisation du durcissement au laser appliqué à des composants de transmission en aciers faiblement alliés

激光贴花过程中的优化以及所有传动装置中的传输成分的优化

• 批准号: 543820-2019
• 负责人: Barka, Noureddine
• 金额: $ 1.82万
• 依托单位: Université du Québec à Rimouski
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=680991
• 关键词: Optimisation; du; durcissement; au; laser

Pierre-Paul Beaulieu Equipment inc. is a company located in Bic (Quebec) and is specialized in the manufacture of motorized equipment such as snow blowers and peat harvesting equipment. Among the issues that the company has noted in recent years, the premature wear of bushings and grooves in low-alloy steels. Indeed, wear is a complex set of phenomena, leading to debris emission with loss of mass, ribs, shape, and accompanied by physical and chemical changes in surfaces. In addition, it does not generally vary in a progressive manner according to parameters such as speed, temperature or time. To remedy wear problems, it is necessary to rethink the choice of materials, review the design of mechanical components or resort to heat treatment processes to harden parts. Knowing that the design criterion can not be approached knowing that the part fulfills a very specific functionality, it is necessary to explore the materials and their heat treatment by opting for surface treatments using the laser process. It will be relevant to test several materials and retain those that offer technological and economic benefits. The main goal of this project is to conduct an experimental study to optimize the hardening of bushings and grooves in low-alloy steels for heavy industrial machinery. The first objective is to conduct a comprehensive study to identify the phenomena involved and the level of stresses and deformations generated during operation. The second objective is to propose a systematic study to detect the effects of the laser process parameters on the performances and to converge towards an optimal hardness profile by developing an adequate strategy. The third objective is to confirm the repeatability of the performances obtained by running a pre-series of tests.

Pierre-Paul Beaulieu Equipment inc.是一家位于魁北克比克的公司，专门生产电动设备，如吹雪机和泥炭收集设备。近年来，该公司注意到的问题之一是低合金钢衬套和凹槽的过早磨损。实际上，磨损是一种复杂的现象，它会导致碎片的排放，同时伴随着质量、肋骨、形状的损失，并伴随着表面的物理和化学变化。此外，它通常不会根据速度、温度或时间等参数以渐进的方式变化。为了解决磨损问题，有必要重新考虑材料的选择，审查机械部件的设计或采用热处理工艺硬化零件。知道不能接近设计标准，知道部件满足非常特定的功能，有必要通过选择使用激光工艺的表面处理来探索材料及其热处理。测试几种材料并保留那些提供技术和经济效益的材料将是相关的。该项目的主要目标是进行一项实验研究，以优化用于重型工业机械的低合金钢衬套和凹槽的硬化。第一个目标是进行一项全面的研究，以确定所涉及的现象以及在操作过程中产生的应力和变形的水平。第二个目标是提出一项系统的研究，以检测激光工艺参数对性能的影响，并通过制定适当的策略向最佳硬度轮廓收敛。第三个目标是确认通过运行一系列预先测试获得的性能的可重复性。