Molds & Tooling
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Low LCP Weld Strength Constrains Structural Design
문제 현상
【Problem Phenomenon】LCP structural parts with holes or multiple gates have weld strength far lower than the body and cannot withstand assembly torque
원인 분석
LCP's self-reinforcing oriented structure makes molecular entanglement at the weld interface extremely low, so weld strength is inherently low; South China University of Technology literature lists low weld strength as one of LCP's main disadvantages
해결 방법
For hole positions, use core-pulling followed by machining instead of melt flow-around; change multiple gates to a single gate to eliminate weld lines; locally thicken stressed weld areas and add reinforcing ribs, or use insert connections instead
핵심 요약
Low weld strength is LCP's nature; eliminating or avoiding weld lines in design is the right way; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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