Suggestions of Define Methods by Rigid/Non-Rigid Parts’ Definitions

• 영문명: 강체와 비강체 부품의 정의와 지정방법에 대한 제안
• 발행기관: 한국산업경영시스템학회
• 저자명: Jae-Moon Kim(김재문) Sung-Ho Chang(장성호) Wang-Bum Lee(이왕범)
• 간행물 정보: 『산업경영시스템학회지』제41권 제3호, 115~119쪽, 전체 5쪽
• 주제분류: 경제경영 > 경영학
• 파일형태: PDF
• 발행일자: 2018.09.30

국문 초록

Defining and measuring non-rigid or flexible parts has been controversial in industry for many years. There are two primary areas of controversy. The first is agreeing on what exactly a non-rigid part is. The second is agreeing on how to define and measure a non-rigid part. The subject of non-rigid parts is further complicated by the brief coverage it receives in the national and international standards. This leaves each company to improvise or create its own rules for non-rigid parts. There are some who believe that Geometrical Dimensioning and Tolerancing (GD&T) should not be used on non-rigid parts. This is not true. The ASME Y14.5M standard applies to rigid parts as a default condition. However, there is no definition given for a rigid part. The term rigid part has been used in industry for so long that it has gained a definition by its general use. When most people in industry say rigid part, they are referring to a part doesn’t move (deform or flex) when a force (including gravity) is applied. How much force is relative based on the part characteristics. In reality, all parts will deform (or flex) if enough force is applied. Using this logic, all parts would be considered non-rigid. However, we all know that this is not how parts are treated in industry. Although GD&T defaults to rigid parts, it should also be used on non-rigid parts with a few special techniques. Actually 50~60% of all products designed contain parts or features on parts that are non-rigid. Therefore, we try to suggest the definitions of rigid and non-rigid parts and method to measure non-rigid parts.

목차

1. 서 론

2. 이론적 배경

3. 제안하는 강체와 비강체의 정의

4. 비강체 부품에 대한 구속조건

5. 결 론

키워드

Rigid Part Non-rigid Part GD&T Deform Measure