Literature Review: The Effect of Variations in Bending Process Methods on Defect Results in Alloy Metal Materials

Abstract

The bending process is one of the metal forming technologies that is very important in the manufacturing industry for producing curved-shaped products. This literature review aims to analyze and compare various bending process methods, including Roll Bending, Rotary Draw Bending (RDB), Compression Bending (CB), and V-Bending, as well as factors affecting the quality of bending results such as springback, wrinkling defects, and cross-sectional distortion. The methodology used is a conceptual literature review approach through a systematic comparative study of five recent research journals. The analysis results show that each bending method has its own characteristics, advantages, and limitations. Springback is a common phenomenon that can be reduced by optimizing process parameters and heat treatment. The detection and control of wrinkling defects in situ in RDB has been proven possible with sensor integration. In addition, tooling innovation with Additive Manufacturing (AM) technology offers a flexible and economical solution for small batch production. The conclusions from this review are expected to serve as a guide in selecting methods and optimizing the bending process for specific applications.