Freeform bending tool design for rectangular profiles and its influence on the process

IF 2.4 3区 工程技术 Q3 ENGINEERING, MANUFACTURING Journal of Manufacturing Science and Engineering-transactions of The Asme Pub Date : 2023-06-22 DOI:10.1115/1.4062811
M. Werner, Lorenzo Scandola, D. Maier, W. Volk
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Abstract

Freeform bending offers a wide range of possibilities in terms of component geometries, material grades and profile cross-sections. In the field of circular solid and hollow profiles, the design of the tool is determined by the circular shape of the profile used. When using rectangular profiles, the cross-section of the tool cannot be easily obtained by an offset of the profile cross-section. The large tolerance ranges of the profile standards require compromises with regard to the shape and tolerances of the tool. Tests have shown that the design of the tool has a great influence on the quality of the component. Furthermore, the trade-off in the tool design can lead to unsuitable tool shapes leading to defects and damages on the profile. These are mainly wrinkling, cross-sectional deformations and strongly deformed profile corners, which in some cases form cracks in the material. In this paper, the influences of the tool design on the bending result and the defects of the profiles are investigated. For this purpose, several tool designs with different variants and combinations of the movable die and the fixed die are compared with each other.
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矩形型材自由弯曲刀具设计及其对工艺的影响
自由弯曲在部件几何形状、材料等级和型材截面方面提供了广泛的可能性。在圆实心和空心型材领域,刀具的设计是由所使用的型材的圆形形状决定的。当使用矩形型材时,刀具的横截面不容易通过型材横截面的偏移量来获得。轮廓标准的大公差范围要求在刀具的形状和公差方面做出妥协。试验表明,刀具的设计对零件的质量有很大的影响。此外,刀具设计中的权衡可能导致刀具形状不合适,从而导致轮廓上的缺陷和损坏。这些主要是起皱、横截面变形和强烈变形的型材角,在某些情况下会在材料中形成裂纹。本文研究了刀具设计对型材弯曲结果和缺陷的影响。为此,对几种具有不同变体和动模与定模组合的刀具设计进行了相互比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
6.80
自引率
20.00%
发文量
126
审稿时长
12 months
期刊介绍: Areas of interest including, but not limited to: Additive manufacturing; Advanced materials and processing; Assembly; Biomedical manufacturing; Bulk deformation processes (e.g., extrusion, forging, wire drawing, etc.); CAD/CAM/CAE; Computer-integrated manufacturing; Control and automation; Cyber-physical systems in manufacturing; Data science-enhanced manufacturing; Design for manufacturing; Electrical and electrochemical machining; Grinding and abrasive processes; Injection molding and other polymer fabrication processes; Inspection and quality control; Laser processes; Machine tool dynamics; Machining processes; Materials handling; Metrology; Micro- and nano-machining and processing; Modeling and simulation; Nontraditional manufacturing processes; Plant engineering and maintenance; Powder processing; Precision and ultra-precision machining; Process engineering; Process planning; Production systems optimization; Rapid prototyping and solid freeform fabrication; Robotics and flexible tooling; Sensing, monitoring, and diagnostics; Sheet and tube metal forming; Sustainable manufacturing; Tribology in manufacturing; Welding and joining
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