Investigation on the forming force and surface quality during ultrasonic-assisted incremental sheet forming process

2020 ◽  
Vol 106 (7-8) ◽  
pp. 2703-2719 ◽  
Author(s):  
Weidong Zhai ◽  
Yanle Li ◽  
Zinan Cheng ◽  
Lingling Sun ◽  
Fangyi Li ◽  
...  
Keyword(s):  
Surface Quality ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Forming Force ◽  
Forming Process ◽  
Ultrasonic Assisted

scholarly journals Study on the Springback Effect and Surface Property for Ultrasonic-Assisted Incremental Sheet Forming of Aluminum Alloy

Symmetry ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1217
Author(s):  
Yujing Sun ◽  
Zhenyun Lu ◽  
Chao Li ◽  
Rongtao Wang ◽  
Weidong Zhai
Keyword(s):  
Aluminum Alloy ◽  
Ultrasonic Vibration ◽  
Surface Property ◽  
Surface Hardness ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Forming Process ◽  
Surface Residual Stress ◽  
Continuous Increase ◽  
Ultrasonic Assisted

The effect of ultrasonic vibration on the springback effect and surface property for ultrasonic-assisted incremental sheet forming of aluminum alloy were discussed. A series of experiments were established to explore the ultrasonic vibration on the surface property and springback effect of symmetrical aluminum alloy sheet in order to facilitate analysis of experimental results. It is obtained that the application of ultrasonic vibration can reduce the springback effect. The surface waviness feature aluminum alloy becomes weaker with the continuous increase of ultrasonic amplitude and the surface topography tends to be smoother. In addition, the application of ultrasonic vibration can reduce the surface hardness and promote the surface residual stress distribution to be more uniform. The findings provide an experimental basis for further investigation of the mechanisms of the ultrasonic-assisted incremental sheet forming process.

A Brief Review of Forming Forces in Incremental Sheet Forming

2016 ◽  
Vol 861 ◽  
pp. 195-200
Author(s):  
Yan Le Li ◽  
Jie Sun ◽  
Jian Feng Li
Keyword(s):  
Potential Role ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Current Status ◽  
Forming Force ◽  
Forming Process ◽  
Contact Conditions ◽  
Process Failure ◽  
On Line ◽  
Deformation Mechanics

Investigation of forming forces in incremental sheet forming (ISF) is of great importance since it provides understanding of the deformation mechanics, monitoring of the forming process, failure prediction, and future means of on-line control and optimization. This paper provides a review of studies on the contact conditions and the effects of the process parameters on forming forces in ISF, followed by the current status on forming force prediction and its potential role in the improvement of ISF technology.

Schwingungsüberlagertes Axialformen/Superimposed Oscillated Axial Forming

2020 ◽  
Vol 110 (11-12) ◽  
pp. 838-843
Author(s):  
Philipp Müller ◽  
Bernd-Arno Behrens ◽  
Sven Hübner ◽  
Hendrik Vogt ◽  
Daniel Rosenbusch ◽  
...  
Keyword(s):  
Surface Quality ◽  
Economic Importance ◽  
Combined Effect ◽  
Wird Eine ◽  
Forming Force ◽  
Forming Process ◽  
Forming Technology ◽  
Great Economic Importance ◽  
Gear Geometry

Techniken zur Steigerung der Formgebungsgrenzen in der Umformtechnik sind von hoher wirtschaftlicher Bedeutung. In dieser Arbeit wird eine Schwingungsüberlagerung im Krafthauptfluss eines Axialformprozesses zur Ausprägung einer Verzahnungsgeometrie untersucht. Die Auswirkungen der Schwingung auf die erzielbare Ausfüllung der Zahnkavitäten werden analysiert sowie die Parameter Schmierung und Oberflächengüte der Halbzeuge in ihrer kombinierten Wirkung untersucht. Es konnte eine Reduzierung der mittleren Umformkraft sowie eine Erhöhung der Formfüllung festgestellt werden. Techniques for extending the production limits in forming technology are of great economic importance. In this research, a superimposed oscillation in the main force flow of an axial forming process to form an axial gear geometry is investigated. The effects of the superimposed oscillation on the achievable form-filling of the tooth cavities are analyzed and the parameters lubrication and surface quality of the semi-finished products are investigated in their combined effect. A reduction of the averaged forming force as well as an increase of the form-filling could be achieved.

A Mixed Toolpath Strategy for Improved Geometric Accuracy and Higher Throughput in Double-Sided Incremental Forming

2014 ◽  
Author(s):  
Rui Xu ◽  
Huaqing Ren ◽  
Zixuan Zhang ◽  
Rajiv Malhotra ◽  
Jian Cao
Keyword(s):  
Incremental Forming ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Geometric Accuracy ◽  
Recent Past ◽  
Forming Process ◽  
Process Flexibility ◽  
Formed Part ◽  
Future Work

Incremental sheet forming has attracted considerable attention in the recent past due to advantages that include high process flexibility and higher formability as compared to conventional forming processes. However, attaining required geometric accuracy of the formed part is one of the major issues plaguing this process. The Double-Sided Incremental Forming process has emerged as a potential process variant which can preserve the process flexibility while maintaining required geometric accuracy. This paper investigates a mixed toolpath for Double-Sided Incremental Forming which is able to simultaneously achieve good geometric accuracy and higher throughput than is currently possible. The geometries of parts formed using the mixed toolpath strategy are compared to the desired geometry. Furthermore, an examination of the forming forces is used to uncover the reasons for experimentally observed trends. Future work in this area is also discussed.

An approach to eliminate stepped features in multistage incremental sheet forming process: Experimental and FEA analysis

2017 ◽  
Vol 31 (2) ◽  
pp. 599-604 ◽  
Author(s):  
Harish Kumar Nirala ◽  
Prashant K. Jain ◽  
J. J. Roy ◽  
M. K. Samal ◽  
Puneet Tandon
Keyword(s):  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Forming Process ◽  
Fea Analysis

A New Incremental Sheet Forming Process Based on a Flexible Supporting Die System

2007 ◽  
pp. 607-614
Author(s):  
E. Maidagan ◽  
Joachim Zettler ◽  
M. Bambach ◽  
P.P. Rodríguez ◽  
Gerhard Hirt
Keyword(s):  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Forming Process
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