NCHU Team Develops Digital Scraping Technology to Lead Machine Tool Manufacturers in Enhancing Precision
Professor Tsai Chih-Cheng's team at National Chung Hsing University (NCHU) has developed 'digital scraping' technology after 16 years of research. This technique, which can be mechanically processed, improves the stability and precision of slide rails, reducing labor and time costs. It is set to digitalize and standardize key processes in high-end machine tools. Several companies, including Yeong Chin Machinery, have adopted this technology, aiming to enter the market for large, high-end processing equipment for the energy, aerospace, and military industries.
📋 Article Processing Timeline
- 📰 Published: May 11, 2026 at 19:37
- 🔍 Collected: May 11, 2026 at 20:02 (24 min after Published)
- 🤖 AI Analyzed: May 12, 2026 at 00:58 (4h 56m after Collected)
Central News Agency
(Central News Agency reporter Chao Li-yen, Taichung, May 11th) Professor Tsai Chih-Cheng of the Department of Mechanical Engineering at National Chung Hsing University, after 16 years of research and development, has developed a mechanically processable 'digital scraping' technology. This technology improves the stability and precision of slide rails, reduces labor and time costs, and will lead the key processes of high-end machine tools towards digitalization and standardization.
Today, the NCHU Industry-Academia Linkage Center held a patent licensing agreement signing ceremony for the 'Scraping Texture Structure of Sliding Surfaces.' NCHU President Chan Fu-chih, patent inventor Tsai Chih-cheng, Yeong Chin Machinery General Manager Chen Shen-teng, Chien Tai Machinery Chairman Yang Shu-han, Awea Machine Co. Deputy General Manager Yeh Rui-ming, and Kao Fong Machinery Deputy General Manager Wu Sheng-dun jointly signed the agreement.
Tsai Chih-cheng stated that the precision and stability of machine tools are critical to high-end manufacturing capabilities in aerospace, energy, semiconductors, automotive, and defense industries. Large, heavy-duty, high-precision machine tools mostly adopt hard-rail systems. The critical 'scraping' process requires creating special textures and tiny depressions on the sliding surface to achieve oil storage lubrication, reduce friction and wear, and control contact area, allowing large machines to maintain smooth sliding and high-precision positioning under heavy loads.
Tsai Chih-cheng mentioned that traditional scraping has long relied on manual craftsmanship by experienced masters, highly dependent on experience and feel, making quality and performance difficult to standardize. The team developed the patented 'Scraping Texture Structure of Sliding Surfaces' technology, which allows for low-friction texture structures to be directly machined onto the slide rail surface.
Tsai Chih-cheng said that the core advantages of the technology include evolving from 'manual experience' to 'mechanical science,' stable performance and reliability, controllable production planning, flexible texture configuration and expansion, and avoidance of occupational injuries. The technology has entered the trial production stage, and tests by manufacturers have verified that its performance is no less than traditional scraping. It can configure suitable textures according to different needs, significantly reduces the amount of lubricating oil used for slide rails, and improves the stability and low-carbon benefits of precision machinery.
Yeong Chin Machinery, Chien Tai Machinery, Awea Machine Co., and Kao Fong Machinery, which participated in the technology transfer, introduced this patent to build more competitive slide rail systems for heavy-duty equipment such as gantry machining centers, large vertical and horizontal machining centers, and large turning-milling composite machines. They aim to enter the market for large, high-end processing equipment required by the energy, aerospace, and military industries.
Yeh Rui-ming, Deputy General Manager of Awea Machine Co., said that with machine processing taking over, the burden of scraping for masters is only the final adjustment part, requiring less time and effort, significantly saving manpower. Compared to a single machine and a single person, efficiency increases by 3 times, effectively increasing international competitiveness.
Chang Chien-chung, Director of the NCHU Industry-Academia Linkage Center, stated that this achievement originated from the Ministry of Science and Technology's 'Advanced Slide Rail Scraping Texture Technology Entrepreneurship Project,' demonstrating the results of industry-academia collaboration and technology commercialization. (Editor: Lee Shu-hua) 1150511
Choose to stand with facts, every sponsorship you make is a force to protect press freedom.
Download the Central News Agency "First-hand News" APP to stay updated with the latest news.
The text, images, and audio-visual content on this website may not be reproduced, publicly broadcast, publicly transmitted, or utilized without authorization.
(Central News Agency reporter Chao Li-yen, Taichung, May 11th) Professor Tsai Chih-Cheng of the Department of Mechanical Engineering at National Chung Hsing University, after 16 years of research and development, has developed a mechanically processable 'digital scraping' technology. This technology improves the stability and precision of slide rails, reduces labor and time costs, and will lead the key processes of high-end machine tools towards digitalization and standardization.
Today, the NCHU Industry-Academia Linkage Center held a patent licensing agreement signing ceremony for the 'Scraping Texture Structure of Sliding Surfaces.' NCHU President Chan Fu-chih, patent inventor Tsai Chih-cheng, Yeong Chin Machinery General Manager Chen Shen-teng, Chien Tai Machinery Chairman Yang Shu-han, Awea Machine Co. Deputy General Manager Yeh Rui-ming, and Kao Fong Machinery Deputy General Manager Wu Sheng-dun jointly signed the agreement.
Tsai Chih-cheng stated that the precision and stability of machine tools are critical to high-end manufacturing capabilities in aerospace, energy, semiconductors, automotive, and defense industries. Large, heavy-duty, high-precision machine tools mostly adopt hard-rail systems. The critical 'scraping' process requires creating special textures and tiny depressions on the sliding surface to achieve oil storage lubrication, reduce friction and wear, and control contact area, allowing large machines to maintain smooth sliding and high-precision positioning under heavy loads.
Tsai Chih-cheng mentioned that traditional scraping has long relied on manual craftsmanship by experienced masters, highly dependent on experience and feel, making quality and performance difficult to standardize. The team developed the patented 'Scraping Texture Structure of Sliding Surfaces' technology, which allows for low-friction texture structures to be directly machined onto the slide rail surface.
Tsai Chih-cheng said that the core advantages of the technology include evolving from 'manual experience' to 'mechanical science,' stable performance and reliability, controllable production planning, flexible texture configuration and expansion, and avoidance of occupational injuries. The technology has entered the trial production stage, and tests by manufacturers have verified that its performance is no less than traditional scraping. It can configure suitable textures according to different needs, significantly reduces the amount of lubricating oil used for slide rails, and improves the stability and low-carbon benefits of precision machinery.
Yeong Chin Machinery, Chien Tai Machinery, Awea Machine Co., and Kao Fong Machinery, which participated in the technology transfer, introduced this patent to build more competitive slide rail systems for heavy-duty equipment such as gantry machining centers, large vertical and horizontal machining centers, and large turning-milling composite machines. They aim to enter the market for large, high-end processing equipment required by the energy, aerospace, and military industries.
Yeh Rui-ming, Deputy General Manager of Awea Machine Co., said that with machine processing taking over, the burden of scraping for masters is only the final adjustment part, requiring less time and effort, significantly saving manpower. Compared to a single machine and a single person, efficiency increases by 3 times, effectively increasing international competitiveness.
Chang Chien-chung, Director of the NCHU Industry-Academia Linkage Center, stated that this achievement originated from the Ministry of Science and Technology's 'Advanced Slide Rail Scraping Texture Technology Entrepreneurship Project,' demonstrating the results of industry-academia collaboration and technology commercialization. (Editor: Lee Shu-hua) 1150511
Choose to stand with facts, every sponsorship you make is a force to protect press freedom.
Download the Central News Agency "First-hand News" APP to stay updated with the latest news.
The text, images, and audio-visual content on this website may not be reproduced, publicly broadcast, publicly transmitted, or utilized without authorization.