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设备公司是一家位于BIC（魁北克）的公司，专门从事机动设备的制造，例如吹风机和泥炭收集设备。在该公司近年来所指出的问题中，低合金钢的衬套和凹槽的过早磨损。实际上，磨损是一组复杂的现象，导致碎片发射，质量，肋骨，形状损失，并伴有表面的物理和化学变化。另外，它通常不会根据速度，温度或时间等参数以进行渐进的方式变化。为了补救磨损问题，有必要重新考虑材料的选择，检查机械组件的设计或诉诸热处理过程以使零件变硬。知道该零件可以实现非常具体的功能，因此无法接近设计标准，因此有必要通过使用激光过程选择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利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，以优化为重工机械的低合金钢中的衬套和凹槽的硬化。第一个目标是进行全面的研究，以确定操作过程中所涉及的现象以及应力和变形的水平。第二个目标是提出一项系统的研究，以检测激光过程参数对性能的影响，并通过制定适当的策略来收敛到最佳硬度曲线。第三个目标是确认通过运行测试前的序列获得的性能的可重复性。