Process limits for incremental flanging and hole flanging operations using a CNC controlled forming tool

使用 CNC 控制成型工具进行增量翻边和孔翻边操作的工艺限制

基本信息

项目摘要

Incremental sheet forming (ISF) offers a set of technological advantages and potentials. These include low part specific tooling, high flexibility due to short ramp up times and increased forming limits. Especially the recently developed process combinations (e.g. the combination of stretch forming and ISF) offer the possibility of low cost production of complex sheet metal parts meeting low tooling demand and reduced process times. Thus, the technological progress has reached a state that requires investigations of the complete process chain. Beside the primary forming and trimming steps finishing operations, such as flanging and hole flanging for the introduction of functional elements, are part of the complete manufacturing process. Therefore systematic studies on the application of ISF for forming of these elements are carried out within this work. The overall objective of the project is to explore the fundamentals of flanging as well as hole flanging operations by ISF and to enable the technological requirements for the use of these finishing operations by ISF. In the first project period a basic understanding of the process has been established. Individual influences of single process parameters was considered and analysed. It was shown that the incremental forming character allows (significant) extension of known process limitations of conventional forming operations. In the proposed research period the compiled knowledge is to be made accessible in a commonly applied CAM tool. A direct implementation of the follow-up operations in the computer aided manufacturing (CAM) routine is a requirement for an efficient use of the shown technology potentials. Furthermore, the achievable hole flange properties are to be optimized with respect to the resulting geometrical accuracy. To fully utilize the demonstrated potential of incremental hole flanging operations it is mandatory to meet the geometrical accuracy (wall angle of 90°). Additionally the influence of pre-forming steps is to be analysed. Therefore it is to be examined to what extent the identified high forming limits are transferable to a subsequent processing of preformed components. Finally, the obtained results are transferred to a complex application component.
板料渐进成形(ISF)具有一系列的技术优势和潜力。这些优势包括低零件专用模具、快速升温时间带来的高灵活性以及更高的成形极限。特别是最近开发的工艺组合(例如拉伸成形和ISF的组合)提供了低成本生产复杂金属板件的可能性,以满足低工具需求并减少加工时间。因此,技术进步已经达到了一个需要调查整个过程链的状态。除了主要的成形和修边步骤外,精加工操作,如用于引入功能元件的翻边和孔翻边,也是完整制造工艺的一部分。因此,本工作对ISF在形成这些元素中的应用进行了系统的研究。该项目的总体目标是探索ISF翻边和孔翻边操作的基本原理,并满足ISF使用这些精加工操作的技术要求。在第一个项目期间,对这一过程有了基本的了解。考虑并分析了单个工艺参数的个体影响。结果表明,渐进成形特性允许(显着)扩展已知的传统成形操作的工艺限制。在拟议的研究期间,汇编的知识是在一个常用的CAM工具访问。在计算机辅助制造(CAM)程序中直接执行后续操作是有效利用所示技术潜力的要求。此外,可实现的孔凸缘性能将相对于所得到的几何精度进行优化。为了充分利用增量孔翻边操作的潜力,必须满足几何精度(90°壁角)。此外,预成型步骤的影响进行了分析。因此,要检查所确定的高成形极限在多大程度上可转移到预成形部件的后续加工中。最后,将获得的结果传输到一个复杂的应用程序组件。

项目成果

期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Improving geometrical accuracy for flanging by incremental sheet metal forming
通过渐进式金属板材成形提高翻边的几何精度
A New Process Design for Performing Hole-flanging Operations by Incremental Sheet Forming
渐进式板材成形翻孔新工艺设计
  • DOI:
    10.1016/j.proeng.2014.10.325
  • 发表时间:
    2014
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Bambach;Voswinckel
  • 通讯作者:
    Voswinckel
Process Limits of Stretch and Shrink Flanging by Incremental Sheet Metal Forming
  • DOI:
    10.4028/www.scientific.net/kem.549.45
  • 发表时间:
    2013-04
  • 期刊:
  • 影响因子:
    0
  • 作者:
    H. Voswinckel;M. Bambach;G. Hirt
  • 通讯作者:
    H. Voswinckel;M. Bambach;G. Hirt
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Professor Dr.-Ing. Gerhard Hirt其他文献

Professor Dr.-Ing. Gerhard Hirt的其他文献

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{{ truncateString('Professor Dr.-Ing. Gerhard Hirt', 18)}}的其他基金

Investigation of flexible radial ring rolling for production of non-axially symmetric seamless rings on radial axial ring rolling mills
在径向轴向环件轧机上生产非轴对称无缝环的柔性径向环件轧制研究
  • 批准号:
    454751242
  • 财政年份:
    2021
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Characterization of the suitability of high manganese steels for the production of small sheet metal parts by multi-stage deep drawing
高锰钢多级拉深生产小型钣金零件的适用性表征
  • 批准号:
    423190740
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants (Transfer Project)
Defined adjustment of the residual stress distribution in strip and sheet material via roller levelling
通过辊矫平对带材和板材中的残余应力分布进行明确的调整
  • 批准号:
    322638998
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants (Transfer Project)
Criteria for the closure and pressure welding of pores in open die forging
开式模锻气孔封闭和压焊标准
  • 批准号:
    283878720
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Model-based description of bond formation, evolution and failure in multi-pass roll bonding processes
基于模型的多道辊压粘合过程中粘合形成、演变和失效的描述
  • 批准号:
    317614920
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants (Transfer Project)
Twin-Roll Strip Casting Process for the Production of Clad Strip - Twin-Roll Clad Casting
用于生产复合带材的双辊带材连铸工艺 - 双辊复合连铸
  • 批准号:
    258106764
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Evaluation of sheet metal covers to improve tool life in forging
评估金属板覆盖层以提高锻造工具寿命
  • 批准号:
    262370983
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Approach to application-oriented properties of electrical steels by means of cold rolling and heat treatment
通过冷轧和热处理提高电工钢应用性能的方法
  • 批准号:
    255707264
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Units
Increasing the range of producible geometries in open-die forging through superimposed stress states
通过叠加应力状态增加开式模锻可生产的几何形状范围
  • 批准号:
    256896401
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Lubricant-free tribology concepts for cold extrusion by interaction-reduced coatings and structures
通过减少相互作用的涂层和结构进行冷挤压的无润滑摩擦学概念
  • 批准号:
    244932637
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes

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