Based on Abaqus of Simulating and Analyzing the Incremental Forming Method of Water Jet

2013 ◽  
Vol 401-403 ◽  
pp. 69-72
Author(s):  
Ling Yun Zhang ◽  
Dong Hui Li
Keyword(s):  
Experimental Data ◽  
Process Simulation ◽  
Manufacturing Industry ◽  
Incremental Forming ◽  
Rapid Development ◽  
Water Jet ◽  
Essential Factor ◽  
Forming Process ◽  
Batch Production ◽  
Element Simulation

With the rapid development and widespread use of water jet technology, the water jet forming method is also got attention by the manufacturing industry. Its advantage is no need for manufacturing the mold and forming directly, applies to small batch production. This paper is mainly study the finite element simulation of water jet forming method. The essential factor of water jet forming process simulation is to simplify the mold in reasonable mechanics method. Compared with existing experimental data to verify the accuracy of the model, and analyze the characteristics of the water jet forming.

Progress of Theoretical Research-Oriented Multi-Species Small Batch Machining Process

2013 ◽  
Vol 364 ◽  
pp. 470-473
Author(s):  
Ming Yue Yue ◽  
Yi Dan Zhou
Keyword(s):  
Mathematical Description ◽  
Manufacturing Industry ◽  
Rapid Development ◽  
Machining Process ◽  
Theoretical Research ◽  
Process Theory ◽  
Matching Problem ◽  
Batch Production ◽  
Manufacturing Enterprises ◽  
Machinery Manufacturing

With the rapid development of machinery manufacturing industry, multi variety and small batch production has gradually become one of the main means of manufacturing enterprises. On the basis of describing the characteristics and meaning of multi variety and small batch production, this article summarizes its domestic and international situation of machinery process theory, optimization and evaluation methods, presents several methods of mathematical description and model for multi variety and small batch production and finally summarize the trends of matching problem between the processing technology and production system.

scholarly journals Development of a Numerical Model of the Hot Air Staking Process Based on Experimental Data

2020 ◽  
Vol 10 (20) ◽  
pp. 7115
Author(s):  
Sebastian Härtel ◽  
Eric Brueckner ◽  
Birgit Awiszus ◽  
Michael Gehde
Keyword(s):  
Experimental Data ◽  
Numerical Models ◽  
Heating Time ◽  
Forming Process ◽  
Experimental Development ◽  
Hot Air ◽  
Element Simulation ◽  
Previous Design ◽  
Empirical Tests ◽  
Foreign Materials

Intelligent light weight concepts are increasingly designed as multi-material systems in order to achieve optimized properties through a targeted combination of materials. For these applications, the market demands joining technologies that make it possible to join foreign materials reliably (e.g., incompatible thermoplastics, thermoplastic-metal and thermoplastic-thermoset). In view of these industrial challenges, thermoplastic staking is an established forming process. At present, computer-aided development and precise FE-simulation (finite element-simulation) of these processes are not state-of-the-art. Accordingly, the previous design is based on subjective empirical values and empirical tests of the component. Within the framework of the paper, these gaps are to be closed by the development of numerical models for the heating and forming behavior of thermal plastic rivets (hot air staking) and the associated experimental validation. This requires the experimental development of the cause-effect relationships between melt formation and the resulting forming behavior. Finally, the numerical simulation shows a high conformity to the experimental data and allows an evaluation of the minimum heating time as well as initial approaches to evaluating the resulting structures by the simulation.

scholarly journals Formability of Aluminum Alloys During Single Point Incremental Forming – A Review

2022 ◽  
Vol 12 (1) ◽  
pp. 0-0
Keyword(s):  
Aluminum Alloys ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Incremental Forming ◽  
Single Point ◽  
Single Point Incremental Forming ◽  
Forming Process ◽  
Batch Production ◽  
Significant Research ◽  
Incremental Sheet Metal Forming

Single point incremental sheet metal forming has passed through a period of ample improvement with developing responsiveness from research societies and industries globally. The process has expressively spared the practice of using costly dies, which makes it an appropriate process for manufacturing prototypes and small batch production. It also discovers easiness in fabricating components of timeworn equipment. Additionally, in recent years, aluminum alloys become the most commonly used materials in the automotive, aeronautics, and transportation industries for their structural and other applications. The effect of various process parameters on the formability of Single Point Incremental Forming of aluminum alloys has been critically surveyed. Ultimately, this article also debated the dares associated with the Single Point Incremental Forming process and recommended some correlated research regions which probably charm significant research considerations in the future.

Comparison of Predicted Forming Limit Curves with Measured Experimental Data on Hot-Dip Zinc-Coated Cold-Rolled Steel by Incremental Forming Process

2019 ◽  
Vol 821 ◽  
pp. 256-262 ◽  
Author(s):  
Ramil Kesvarakul ◽  
Khompee Limpadapun
Keyword(s):  
Experimental Data ◽  
Incremental Forming ◽  
True Strain ◽  
Single Point ◽  
Forming Limit ◽  
Rolled Sheet ◽  
Single Point Incremental Forming ◽  
Forming Process ◽  
Cold Rolled ◽  
Forming Limit Curves

Single Point Incremental Forming (SPIF) is a die-less forming process with advantages of high-flexibility, low-cost and short lead time. The high local strains that are applied to the metal sheet, often exceeding the conventional formability limit. This paper is focused on comparison of predicted forming limit curves with measured experimental data on Hot-Dip Zinc-Coated Cold-Rolled sheet, with 0.20 mm thick is studied in single point incremental forming. Truncated square pyramid and cone are formed to study the formability of blank sheets at room temperature. It was found that both Formulation of plastic instability criteria and Keeler’s formula gives the lowest FLC. FLDs have predicted failures in forming process consistently with the real experiments. The experimentally obtained cracking limit differ from analytical one and empirical one by about 3.398 and 2.135 true strain respectively at FLD0, the corresponding plane strain values.

Finite Element Simulation of the Self-Piercing Riveting Process

2008 ◽  
Author(s):  
S. G. Qu ◽  
W. J. Deng
Keyword(s):  
Experimental Data ◽  
Finite Element ◽  
Process Simulation ◽  
Metal Flow ◽  
The Self ◽  
Finite Element Code ◽  
The Finite Element Method ◽  
Element Simulation ◽  
Riveting Process ◽  
Good Agreement

This work is focused on the development of a numerical model with the help of the finite element method to predict the magnitude and distribution of deformation associated with the self-piercing riveting process. A 2D axisymmetric model of the self-piercing riveting process is presented using the commercial implicit finite element code MSC.Superform. The flow stress of the work-material is taken as a function of strain, strain-rate and temperature. The shape of the rivet joint and the stress, strain and damage in both of the rivet and workpiece sheets are determined. The information obtained from the process simulation, such as force, metal flow and details of die fill are discussed. The calculated punching forces and the shape of the rivet joint are compared with experimental data and found to be in good agreement. Defects in the riveting are analyzed and are categorized into penetration, necking and lap formation. The effects of workpiece temperature on punching force were also discussed.

scholarly journals Numerical Modeling Rolling Contact Problem and Elasticity Deformation of Rolling Die under Hot Milling

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 226 ◽  
Author(s):  
Mesay Tolcha ◽  
Holm Altenbach
Keyword(s):  
Experimental Data ◽  
Finite Element ◽  
Numerical Modeling ◽  
Finite Element Simulation ◽  
Contact Region ◽  
Tangential Force ◽  
Rolling Contact ◽  
Forming Process ◽  
Element Simulation ◽  
Metal Forming Process

In metalworking, rolling is a metal-forming process in which slab is passed through one or more pairs of the rolling dies to reduce the thickness and to make the thickness uniform. Modeling of rolling die contact with the slab primarily needs to describe the Tribology of contact phenomena. The central concern of numerical modeling is used in this work to indicate a set of equations, derived from the contact principle, that transfer the physical event into the mathematical equations. Continuum rolling contact phenomena is considered to explain how a contact region is formed between rolling die and slab and how the tangential force is distributed over the contact area with coefficient of friction. At the end, elasticity stress behavior of rolling die contact with the slab for a number of cyclic loads is modeled. The model includes new proposed constitutive equations for discontinuity of the velocity–pressure distribution in rolling contact from the entry side to exit side of the neutral point. To verify the model, finite element simulation and experimental data from the literature are considered. The results show good agreement with finite element simulation and experimental data.

scholarly journals A Flexible and Economic Method to Improve the Ability of Electromagnetic Flanging for Tubes

2021 ◽  
Author(s):  
Qi Xiong ◽  
Zhe Li ◽  
Jianhua Tang ◽  
Hang Zhou ◽  
Meng Yang ◽  
...  
Keyword(s):  
High Speed ◽  
Rapid Development ◽  
Discharge Voltage ◽  
Forming Process ◽  
Electromagnetic Forces ◽  
Electromagnetic Structure ◽  
Economic Method ◽  
Element Simulation ◽  
Geometrical Matching ◽  
Aluminum Alloy Tube

Abstract In recent years we have seen the rapid development of electromagnetic flanging of tubes, which uses coils to generate electromagnetic forces to achieve the deformation with high speed but without contact. However, the electromagnetic force decays rapidly with the increase of distance, resulting in strict requirements of geometrical matching between the coils and the tubes. Usually, new coils should be fabricated for tubes with new sizes, which is inconvenient and uneconomical. Therefore, a more flexible and economical method is proposed in this article, which introduces a solenoid field shaper into the existing electromagnetic flanging system. By adjusting the structure and the position of the field shaper, the distribution of electromagnetic forces can be reshaped to form tubes with various sizes, without changing the coil, whose cost is much higher than a field shaper. The principle of this method is introduced in detail. Then an electromagnetic-structure coupled finite element simulation model is established to calculate the forming process. The results show that when forming an A1060-O aluminum alloy tube with an inner diameter of 110mm, the discharge voltage can be tuned down from 8.5kV, without field shaper, to 7.11kV, with field shaper. That means the energy consumption of the system can be saved by 30%, and the manufacturing process of the field shaper is simpler than that of the forming coil. What’s more, when forming tubes with different sizes, the new method shows higher effectiveness, greater flexibility, and lower cost than the traditional way.

Analysis of Lead Screw High-Speed Roll-Beating Forming

2010 ◽  
Vol 455 ◽  
pp. 151-155 ◽  
Author(s):  
Yan Li ◽  
L. Zhang ◽  
Ming Shun Yang ◽  
Qi Long Yuan
Keyword(s):  
Process Simulation ◽  
High Speed ◽  
Incremental Forming ◽  
Single Point ◽  
The Self ◽  
Forming Process ◽  
Lead Screw ◽  
Forming Technology ◽  
Cold Roll ◽  
Simulation Results

Lead screw high-speed cold roll-beating is a new single-point incremental forming technology which is die-free and unconstrained. The principle of the forming process is analyzed. Modeling, meshing and parameter selecting for forming process simulation with ABAQUS are discussed. The lead screw cold roll-beating forming process simulation is carried out; stress & strain changes and metal flowing law are analyzed. Experiments are carried out with the self-developed experimental equipment. The experimental results are consistent with the simulation results, thus the validity of the simulation and feasibility of the forming process are verified.

Research on the Simulation for Sheet Metal NC Incremental Forming

2013 ◽  
Vol 441 ◽  
pp. 498-501
Author(s):  
Hu Zhu ◽  
Nan Li ◽  
Jin Ju
Keyword(s):  
Sheet Metal ◽  
Process Simulation ◽  
Tool Path ◽  
Incremental Forming ◽  
Simulation Method ◽  
Simulation Software ◽  
Software System ◽  
Forming Process ◽  
Cnc Incremental Forming

In the sheet metal CNC incremental forming, the forming is realized by its tool's step by step and point by point extrusion movements along the pre-programmed contour tool path in the outline of the sheet part. Therefore, the correctness of the forming path used to control the tool's movement has a magnificent impact on the forming quality. And a NC incremental forming process simulation method which is used to verify the correctness is showed in this paper. Meanwhile the simulation software system is developed by using VC++ and OpenGL. The case study shows that the software system can be used in the verification of NC incremental forming path and the motion analysis of forming tool, and the software system runs steadily and reliably.

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