High-end CNC machine tools and basic manufacturing equipment" National Science and Technology major project "Aerospace engine disk / shaft / blade parts efficient high-precision grinding wheel" subject to acceptance On August 27, 2018, the national science and technology major project led by Zhengzhou Abrasives Grinding Research Institute Co., Ltd. (hereinafter referred to as Zhengzhou Sanmao) was the topic of "High-efficiency precision grinding wheel for aero-engine disc/shaft/blade parts" ( No.: 2012ZX04003-081) successfully passed the final financial acceptance of the organization organized by the Ministry of Industry and Information Technology, marking the completion of all acceptance work. Previously, the subject successfully passed the pre-acceptance of the task on February 27, 2018, the file acceptance on June 21, 2018, and the final acceptance of the task on June 25, 2018. Archives acceptance meeting Task acceptance meeting site Financial acceptance meeting site This project is a national science and technology major project approved by the Ministry of Industry and Information Technology in 2012. It is led by Zhengzhou Sanmo, and is jointly led by Suzhou Far East Grinding Wheel Co., Ltd. and Luxin Venture Capital Group Co., Ltd. Nanjing Aerospace University, Hunan University, Dalian University of Technology, Qinchuan Machine Tool Group Co., Ltd., China Aviation Power Co., Ltd. (Xi'an) 7 units jointly undertake. This project has carried out research work on series of grinding wheel development, grinding performance test, process optimization and application verification. It has successfully broken through the matching between material characteristics and structural characteristics of aero-engine disc/shaft/blade parts and grinding wheel characteristics. The key technology of the pore formation technology of the porous high-strength CBN grinding wheel abrasive layer and the preparation of the microcrystalline ceramic corundum grinding wheel abrasive layer has developed CBN super-hard material grinding wheel and microcrystalline ceramic corundum grinding wheel for efficient precision grinding of disc/shaft/blade parts. Four production lines have been established, and the demonstration application of companies such as China Aerospace Co., Ltd. (Xi'an) has been successfully realized. During the implementation of the project, the grinding wheel development unit, the grinding test unit and the user unit are closely combined, and the optimization matching problem is deeply studied from the three aspects of the grinding wheel-process-grinding machine, which provides a series for the grinding of key components of the aero engine. Tool support. The user unit applied the microcrystalline ceramic corundum grinding wheel developed by the subject to the grinding process of the long shaft spline of the turbine, replacing the original hobbing processing technology, satisfying the machining precision of the spline tooth shape and tooth direction, and successfully solved the typical The processing problem of the thin-walled hollow long shaft (axial length >1m) of the part avoids the series of problems of precision and efficiency brought by the hobbing processing to the spline parts; this topic is the first in-depth study of the CBN super-hard grinding wheel in the disk / Application and problems in the machining of shaft/blade parts. The user unit agrees that the CBN super-hard grinding wheel is a high-performance tool with high speed, high efficiency, high precision and low environmental pollution, which can greatly improve the processing efficiency and the quality of the parts. It has obvious advantages and broad advantages in the field of high-efficiency precision machining of typical parts of aviation engines. Application prospects. The implementation of this project laid the foundation for the steady application of CBN super-hard grinding wheels in the aero-engine field. "High-end CNC machine tools and basic manufacturing equipment" national science and technology major project "Car powertrain key components high-efficiency precision grinding series grinding wheel" project passed the acceptance On August 27, 2018, Zhengzhou Abrasives Grinding Research Institute Co., Ltd. (hereinafter referred to as Zhengzhou Sanmao) took the lead in the national science and technology major project "High-efficiency precision grinding series grinding wheel for key components of passenger car powertrain" ( No.: 2012ZX04003-091) successfully passed the final financial acceptance, marking the completion of all acceptance work. Previously, the subject successfully passed the pre-acceptance of the task on December 8, 2017, the file acceptance on April 25, 2018, and the final acceptance of the task on April 26, 2018. Archives acceptance meeting Task acceptance meeting site Financial acceptance meeting site Site inspection photos (Mianyang Huachen Ruian Auto Parts Co., Ltd. assembled camshaft production line) This project is a national science and technology major project approved by the Ministry of Industry and Information Technology in 2012. It is led by Zhengzhou Sanmao and is jointly led by Luxin Venture Capital Group Co., Ltd. and Baige Abrasives. The company, Hunan University, Qinchuan Machine Tool Group Co., Ltd., Beijing Beike Engine Parts Co., Ltd., Mianyang Huachen Ruian Auto Parts Co., Ltd., Tianrun Crankshaft Co., Ltd. jointly undertake 7 units. This project has carried out research work on series of grinding wheel development, grinding performance test, process optimization, application verification and large-scale production technology, and successfully broke through the high-performance ceramic bond for CBN grinding wheel and large-diameter and high-uniformity group grinding wheel. Key technologies such as precision molding and high-speed ceramic CBN grinding wheel special formula, developed high-speed ceramic CBN grinding wheel for assembly camshaft machining, high-efficiency group grinding wheel for automobile engine crankshaft, transmission gear microcrystalline ceramic abrasive worm wheel, three new high-performance grinding machine With products. Part of the subject product photo Among them, Zhengzhou Sanmao's high-speed ceramic CBN grinding wheel for assembly camshaft processing has filled the domestic gap, and in Mianyang Huachen Ruian Auto Parts Co., Ltd., ThyssenKrupp Engine System (Dalian) Co., Ltd., Shanghai User units such as General Motors Co., Ltd. have implemented batch applications. After large-scale and multi-batch verification, the product performance is stable and reliable. In order to meet the technical requirements of the automotive industry for lightweight, high performance, low emissions and low cost, it provides key tools and technical support, and achieves the application of imported and domestic assembled camshaft production lines. At the same time, it solves the series of common grinding problems of the complex structural parts of the assembled camshaft, and provides a complete set of solutions for high efficiency, high speed, high precision and high surface quality grinding of such workpieces. 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Zhengzhou Sanmao two national science and technology major projects successfully passed the acceptance work
Abstract "National high-tech CNC machine tools and basic manufacturing equipment" national science and technology major project "Cars powertrain key components high-efficiency precision grinding series grinding wheel" project passed the acceptance on August 27, 2018, by Zhengzhou Abrasives Grinding Research Institute Co., Ltd. (hereinafter referred to as Zhengzhou Sanmao)...