Hongjie Chang

Online high speed detection method for end face quality of cored filter rods under complex conditions

Yuhui Zhou, Bin Wei, Guang Yang, Jie Li et autres

Aiming at the current high-speed real-time inspection demand faced in the production of filter rods with cores and the limitations of traditional quality control methods, this study proposes a high-speed online inspection method based on machine vision. As the production speed of …

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Research on machine-vision-based method for head-tail detection of corn ears

Hongjie Chang, Ping Wang, Huli Niu, Haipeng Yan et autres

To address the issues of manual feeding and placement in the processing of fresh corn ears, this study develops a fresh corn ear detection system by using machine vision and deep learning techniques. The hardware setup and acquisition of clear image data …

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Research on an Online Monitoring Device for the Powder Laying Process of Laser Powder Bed Fusion

Bin Wei, Jiaqi Liu, Jie Li, Zigeng Zhao et autres

Improving the quality of metal additive manufacturing parts requires online monitoring of the powder bed laying procedure during laser powder bed fusion production. In this article, a visual online monitoring tool for flaws in the powder laying process is examined, and machine …

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Review of Visual Measurement Methods for Metal Vaporization Processes in Laser Powder Bed Fusion

Jiaqi Liu, Bin Wei, Hongjie Chang, Jie Li et autres

Laser powder bed fusion (LPBF) is of great importance for the visual measurement and analysis of the metallization process, which is the process of solid, liquid, and gas phase transformations of metal powders under high-energy laser irradiation due to the low boiling …

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Effects of Grinding Parameters on the Processing Temperature, Crack Propagation and Residual Stress in Silicon Nitride Ceramics

Haipeng Yan, Fēi Dèng, Zhiying Qin, Jinda Zhu et autres

The surface/subsurface damage of engineering ceramics after machining has a great influence on the service performance of parts. In order to obtain a high grinding surface quality of engineering ceramics, and take silicon nitride ceramic as a research object, a series of …

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蛋脂双優 ダイズの新品種「辛豆12」の選別育成【JST・京大機械翻訳】

Su Guoxiu, Zhao Zipeng, Hongjie Chang, Guang-Lei Cao et autres

Design of Fuzzy Controller for Temperature of Bag Filter

Hongjie Chang

In the process of bag filter, the problem of bag was burned or hardened often occurred, which was caused of poor flue gas temperature control. So this paper analyzes the nonlinear relationship between temperature variations of mixed flue gas and flow in …

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A path planning method based on correcting model in on-line reverse system

Hongjie Chang

The reverse engineering general with coordinate measuring machine or 3D scanner realize the parts digital,and the measuring equipment is very expensive which limit the reverse engineering application.To solve this problem,this paper uses the higher precision walking mechanism of numerical control machine,adds the …

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An On-line Reverse Method for Cylindrical Surface

Guang Yang, Yongdi Zhang, Yue Yan-fang, Lijian Liu et autres

A system composed of a machining center, related measurement tools and its software can achieve on-line reverse. However the measuring point data through the ways to obtain is a lower accurate. It is difficult to obtain satisfactory reverse results using least squares …

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Research on temperature controller for high vacuum annealing furnace

Yue Yan-fang, Huizhen Wang, Hongjie Chang

This paper designs a kind of fuzzy temperature controller, which is suitable for high vacuum annealing furnace. Based on the high vacuum diffusing heat process's special characteristics, which are radiation only; the uneven temperature distribution inside furnace; the slow speed of work …

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Design and research of crystals online laser marker

Hongjie Chang

Having described the principle and requirement of a laser Marker,Studied it’s principle and main structure,expatiated the design of it’s key technology,then a new kind of laser marker which can mark 49s / SMD crystal online was designed. The new machine can improve …

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Web-based CAPP and MES integrated information management system

Hongjie Chang

By using ASP.Net technology,a CAPP and MES integrated information management system based on the browser/server(B/S) three-layer network structure is developed.The structure,functions and characteristics of the system are introduced.It proves in the practical application that manufacturing information is integrated and shared between departments …

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