Research Trends and Tasks of 3.1 Movement in Hwaseong Area, Gyeonggi-do

Abstract

Quality control using artificial intelligence (AI) has led to considerable improvements in the manufacturing industry. However, trimming die design inspection to minimize potential failures is still done manually by engineers. The inspection is labor-intensive, time-consuming, and prone to human error. In this study, we developed an automatic design inspection system for automobile trimming dies by integrating AI modules and computer-aided design (CAD) software. The AI modules replace the engineers' judgment, and the CAD software performs the operations requested by the AI modules. The design inspection is completed through a zigzag interaction between the AI modules and CAD software by a one-click operation without the intervention of experts. In the zigzag interaction process, 3D CAD files are converted to 2D images for interaction from the CAD software to the AI modules, and the output of the AI modules is transferred to the CAD software through VBA macros.The AI modules are designed to be CAD-independent and data-efficient; therefore, they can be easily adapted to other CAD software and achieve a high performance, even when trained with only a few trimming dies. The length measurement error is only 2.4 % on an average, which is at the 14th place out of 18 grades according to ISO 286-1:1988 standard tolerance. In addition, the inspection time is reduced to approximately one-fifth of the manual inspection time by experts.

Materials and techniques used for Portrait of Yi Bok Shin oiled paper sketches: scientific analysis and practical application

“…He was born in 1698 and entered public service in 1729. 16 Surviving government documents related to Shin are largely mundane and include exam results (sigwon), a salary certificate (nokpae), and 25 royal letters of appointment (gosin), which bestowed a variety of government posts upon him throughout his life. 17 Additionally, there is a record of the king's gifting him an exceptional horse on 16 May 1731, which suggests that he was held in high regard.…”