带有 3D 内部冷却结构系统的新型砂轮设计

IF 3.3 Q2 ENGINEERING, MANUFACTURING
S. Costa, Paulina Capela, Maria S. Souza, José R. Gomes, L. Carvalho, Mário Pereira, Delfim Soares
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引用次数: 0

摘要

这项工作讨论了传统砂轮所面临的挑战:热引起的工具磨损和工件热损伤。虽然纹理砂轮能改善散热效果,但目前的方法(如基于激光和机械加工的方法)仅限于表面,更新成本较高。拟议的制造技术在整个砂轮中引入了创新的三维冷却通道结构,可针对特定砂轮应用实现各种通道几何形状。生产步骤的设计考虑到了传统的压制和烧结阶段。在压制过程中,在绿色主体中加入了三维有机结构。干燥循环消除了所有存在的液体,烧结循环烧掉了结构,最终产品中的沟槽显露出来。对粘合剂类型/含量和加热速率等关键参数进行了优化,以实现可重复性和可扩展性。磨损测试表明,与传统车轮相比,该系统的性能和耐用性大幅提高(>100%)。六角形通道结构使磨损率降低了 64%,显示出卓越的耐磨性。全面的 CFD 模拟评估了冷却剂流经冷却通道的情况。这种用于三维结构砂轮的新型设计方法通过将冷却剂直接输送到需要的地方,对操作配置进行了创新。它通过优化冷却、减少刀具磨损和提高制造精度来提高整体效率。这种三维通道结构无需进行翻新,从而降低了运行成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A New Grinding Wheel Design with a 3D Internal Cooling Structure System
This work discusses challenges in conventional grinding wheels: heat-induced tool wear and workpiece thermal damage. While textured abrasive wheels improve heat dissipation, the current surface-only methods, such as those based on laser and machining, have high renewal costs. The proposed manufacturing technology introduces an innovative 3D cooling channel structure throughout the wheel, enabling various channel geometries for specific abrasive wheel applications. The production steps were designed to accommodate the conventional pressing and sintering phases. During pressing, a 3D organic structure was included in the green body. A drying cycle eliminated all present fluids, and a sintering one burnt away the structure, revealing channels in the final product. Key parameters, such as binder type/content and heating rate, were optimized for reproducibility and scalability. Wear tests showed a huge efficiency increase (>100%) in performance and durability compared of this system to conventional wheels. Hexagonal channel structures decreased the wear rates by 64%, displaying superior wear resistance. Comprehensive CFD simulations evaluated the coolant flow through the cooling channels. This new design methodology for three-dimensionally structured grinding wheels innovates the operation configuration by delivering the coolant directly where it is needed. It allows for increasing the overall efficiency by optimizing cooling, reducing tool wear, and enhancing manufacturing precision. This 3D channel structure eliminates the need for reconditioning, thus lowering the operation costs.
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来源期刊
Journal of Manufacturing and Materials Processing
Journal of Manufacturing and Materials Processing Engineering-Industrial and Manufacturing Engineering
CiteScore
5.10
自引率
6.20%
发文量
129
审稿时长
11 weeks
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