| YOU Jinhong,ZHANG Wulin,CHENG Yu,JIA Dan,ZHAN Shengpeng,DUAN Haitao.Research Progress on Pore-forming Methods of High Performance Porous Grinding Tools[J],54(7):50-67 |
| Research Progress on Pore-forming Methods of High Performance Porous Grinding Tools |
| Received:September 05, 2024 Revised:November 25, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.07.004 |
| KeyWord:grinding technology porous grinding tools pore-forming method pore design grinding performance |
| Author | Institution |
| YOU Jinhong |
State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection Co., Ltd., CAM, Wuhan , China;Hubei Longzhong Laboratory, Hubei Xiangyang , China |
| ZHANG Wulin |
State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection Co., Ltd., CAM, Wuhan , China;Hubei Longzhong Laboratory, Hubei Xiangyang , China |
| CHENG Yu |
State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection Co., Ltd., CAM, Wuhan , China;Hubei Longzhong Laboratory, Hubei Xiangyang , China |
| JIA Dan |
State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection Co., Ltd., CAM, Wuhan , China;Hubei Longzhong Laboratory, Hubei Xiangyang , China |
| ZHAN Shengpeng |
State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection Co., Ltd., CAM, Wuhan , China;Hubei Longzhong Laboratory, Hubei Xiangyang , China |
| DUAN Haitao |
State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection Co., Ltd., CAM, Wuhan , China;Hubei Longzhong Laboratory, Hubei Xiangyang , China |
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| Abstract: |
| Advanced grinding technology is a vital component of contemporary advanced manufacturing, acting as a crucial support for industries that demand high precision and efficiency. As this technology progresses towards ultra-high-speed and high-load applications, large depth-of-cut capabilities, and high-precision grinding, the performance requirements for grinding tools have noticeably intensified. To fulfill these evolving demands, grinding tools must exhibit exceptional strength, good self-sharpening properties, high wear resistance, excellent dynamic balance, and superior grinding quality. Porous grinding tools, known for their high precision, high efficiency, and exceptional grinding quality, are essential for achieving advanced grinding processes. The work addresses the current challenges associated with the fabrication of porous grinding tools, emphasizing the selection of optimal pore-forming methods, the control of pore structure types, and the evaluation of pore effects. It elaborates on the mechanisms behind various pore-forming techniques and summarizes the characteristics and advantages of three primary methods:the removal method, the hollow-sphere method, and the additive method. The removal method enables a high open-porosity ratio, which results in excellent debris collection and heat dissipation properties. The hollow-sphere method produces uniformly distributed and consistently sized pores, thereby mitigating the negative effects of pores on the structural integrity of the grinding tool. Lastly, the additive method represents a novel approach, offering the ability to customize pore shapes and locations while preserving the benefits of the other methods. Additionally, the work reviews the compatibility of molding methods and pore-forming techniques with the three types of bonding agent materials (metal, ceramic, and resin). It recommends suitable pore-forming methods for each bonding agent type and discusses how these methods affect the mechanical and grinding performance of the tools. The work delves into the combined effects of bonding agent types, pore structures, and porosity on the performance of porous grinding tools. The bonding agent and the integrity of the tool's matrix are critical in determining the overall strength of the grinding tool. While the introduction of pores in the tools enhances grinding performance, it inevitably affects the tool's mechanical properties. Selecting an appropriate pore-forming method based on the bonding agent type is crucial. For metal or ceramic bonding agents grinding tools, increasing the open porosity can significantly improve grinding performance. In contrast, for resin bonding agent grinding wheels, which tend to have lower mechanical strength, uniformly distributed and regularly shaped pores can effectively mitigate the negative impact of increased porosity on the mechanical integrity of the matrix. A thorough consideration of the interactions among the bonding agent type, pore structure, and porosity enables the optimization of performance trade-offs. Additionally, the work highlights the excellent effects of high-performance porous grinding tools in optimizing the surface characteristics of machined workpieces, emphasizing their role in improving surface quality and overall machining efficiency. The presence of pores aids in heat dissipation during the grinding process by facilitating the removal of grinding heat along with debris, thereby lowering grinding temperatures and mitigating subsurface damage to the workpiece. This effectively minimizes the risk of thermal damage, such as surface burns on the workpiece. Furthermore, the pores in the grinding tool promote the exposure of abrasive grains, enhancing the tool's self-sharpening capabilities and increasing its cutting efficiency. The work concludes with a forward-looking perspective on the development of high-performance porous grinding tools. It emphasizes the significance of technology for precise and controllable pore preparation, modeling and simulation technology for exploring pore effects, the establishment of a comprehensive evaluation system for high-performance grinding tools, and intelligent development of new high-performance tool materials. These elements are essential for the design and advancement of cutting-edge grinding tools. |
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