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Springback Prediction of Stretching Process using Finite Element Analysis for DP600 Steel Sheet

REFERENCES 1. Boger R.K., Wagoner, R.H., Barlat F., Lee M.G., Chung K. (2005), Continous, large strain, tension/compression testing of sheet material, International Journal of Plasticity , 21, 2319–2343. 2. Bruschi S., Altan T., Banabic D., Bariani P.F., Brosius A., Cao J., Tekkaya A. E. (2014), Testing and modelling of material behaviour and formability in sheet metal forming, CIRP Annals-Manufacturing Technology , 63(2), 727–749. 3. Cao J., Lee W., Cheng H.S., Seniw M., Wang H., Chung K. (2009), Experimental and numerical investigation

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A Brief Review of Robotic Machining

Abstract

The approach of this paper was to analyze the technical borders of industrial robots and to provide an overview of current technology, technical constraints and the potential types of future research suggestion concerning robotic machining. These complex automation machines used in manufacturing processes are an emerging chapter of industrial engineering that contribute to automatically performing operation in subtractive manufacturing and sheet metal forming processes. Compared with CNC machines which have shape limitations and have the restricted working area, the industrial robot is a flexible, cost-saving alternative.

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Experimental Researches Regarding the Distribution of the Deformations on Incremental Formed Parts

., Jeswiet, J., (2003) A review of conventional and modern single-point sheet metal forming methods, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 217, p. 213-225. Jeswiet, J., Micari, F., Hirt, G., Bramley, A., Duflou, J., Allwood, J., (2005) Asymmetric single point incremental forming of sheet metal, CIRP Annals Manufacturing Technology Volume 54, Issue 2, p. 623-650. Meier, H., Buff, B., Laurischkat, R., Smukala, V., (2009) Increasing the part accuracy in dieless robot

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Analysing the Properties of Surface Layers Generated by Sheet Metal Forming Operations

Analysing the Properties of Surface Layers Generated by Sheet Metal Forming Operations

The paper brings results of the surface layers properties analysis of a thin wall hollow sheet metal parts, produced by metal spinning and deep drawing. The influence of mandrel (workpiece) frequency of rotation on the spun parts surface layer strainhardening is studied and compared with the quality of the formed part surface layer produced by deep drawing technology.

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Technology-Based Sheet Metal Classification and Coding System

Technology-Based Sheet Metal Classification and Coding System

Group technology (GT) concept uses design similarity measure to identify the most similar design and retrieve a useful process plan. One of the existing formal methods of machine parts classifying for the group technology applications is the coding and classification. The researchers have developed many different GT coding schemes, which very precisely describe the design characteristics of the parts, but many of them do not explicitly describe the process plan. The paper presents a new approach to the sheet metal part coding and classification with plan-based attributes implementation in accordance with the technical standard STN 226001.

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Designing a Die for Hydroforming

5. References 1. Vasile, R., Bologa, O., Sheet Metal Hydroforming Technology – State-of-the-Art, Applied Mechanics and Materials, Vol. 841, pp. 3-9, (2016). 2. Bologa, O., Prelucrări prin deformare plastică la rece , Editura Universității, Sibiu, (1989). 3. Siegert, K., Lösch, B., Sheet Metal Forming , Hydroforming of Sheets, Tubes and Profiles, Fellbach, Baden-Württemberg, (1999). 4. Kleiner, M., Neue 100.000 kN Presse für die HydroßBlechumformumg , Hydroumformung von Blechen, Rohren und Profilen, Fellbach, Baden-Württemberg, (2001

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Evaluation of Draw Beads Influence on Intricate Shape Stamping Drawing Process

Abstract

Paper concerns evaluation of influence of shape, size and location of rectangular and semicircular draw beads on sheet-metal forming process. For analysis the simulations of forming process of selected two types of intricate shape stampings with similar ground plan and with approximately the same height from steel strip DC04 with the use of models of optimal blanks made by BSE (Blank Size Engineering) modul of simulation program Dynaform 5.7 were carried out. From simulations of forming process in simulation program Dynaform 5.7 followed that the most suitable is drawing without use of draw beads because cracks in stamping bottom corners do not arise. In the case of undesirable secondary waviness in the walls of intricate shape stamping the drawing with draw beads could be used but it would be necessary to increase the radius at the bottom of both stampings alternatively to choose another material with higher formability.

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Computer-Assisted Design of Sheet Metal Component Formed from Stainless Steel

References [1] Shafaat, M.A., Abbasi, M., Ketabchi, M. (2011): Investigation into wall wrinkling in deep drawing process of conical cups. Journal of Materials Processing Technology, 211(11), pp. 1783-1795, doi: 10.1016/j.jmatprotec.2011.05.026. [2] Neto, D.M., Oliveira, M.C., Santos, A.D., Alves, J.L., Menezes, L.F. (2017): Influence of boundary conditions on the prediction of springback and wrinkling in sheet metal forming. International Journal of Mechanical Sciences, 122, pp. 244-254. [3] Nan, L., He, Y

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Environmental Aspects Regarding The Incremental Forming Process

10. References 1. Kaebernick, H., Kara, S., Sun, M., S ustainable product development and manufacturing by considering environmental requirements , Robotics and Computer Integrated-Manufacturing, Volume 19, Issue 6, pp. 461-468, (2003). 2. Kaebernick, H., Kara, S., 2006. Environmentally sustainable manufacturing: a survey on industry practices , In: Proceedings of 13th CIRP International Conference on Life Cycle Engineering, pp. 19-28, (2006). 3. Ingarao, G., Di Lorenzo, R., Micari, F., Sustainability issues in sheet metal forming processes

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Mechanical Behaviour of Conventional Materials at Experimental Conditions of Deep Drawing Technological Process

. Dislocation-mechanics-based Constitutive Relations fro Material Dynamics Calculation. J. Appl. Physics , 5 (1987), 1816-1825. Hosford, W., J. L. Duncan. Sheet Metal Forming: A Review. JOM , 51 (1999), No. 11, 39-44. Kalpakjian, S. In: Manufacturing Processes for Engineering Materials, New-York, Addison-Wesley, 1991. Ruzanov, F. I. Stability of the Deep Drawing Process during Plastic Forming of Anisotropic Metal. Forging-Stamping Production , (1967), No. 4, 19-22, (in Russian

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