Effects of Friction on Precision Forging Process of Blade with a Damper Platform

2007 ◽  
Vol 561-565 ◽  
pp. 831-834 ◽  
Author(s):  
Yu Li Liu ◽  
He Yang ◽  
Tao Gao
Keyword(s):  
High Efficiency ◽  
Metal Flow ◽  
Vibration Characteristic ◽  
Technological Parameters ◽  
Forging Process ◽  
Precision Forging ◽  
Blade Forging ◽  
Deformation Defects ◽  
3D Software ◽  
Deform 3D

A blade with a damper platform, with excellent anti-vibration characteristic and high efficiency, has become one of the most important types of blades being developed in the aeronautical engines. During the precision forging process of this blade, the friction between dies and workpiece has important effects on metal flow, deformation defects, load and energy etc. So researching the effects of friction conditions on the forging process of blade with a damper platform has been a crucial problem urgent to be resolved. In this paper, the precision forging process of titanium alloy blade with a damper platform under different friction conditions has been simulated and analyzed based on the DEFORM-3D software platform. The obtained results reveal the influence laws of friction on temperature field and load-stroke curves, and provide a significant basis for determining technological parameters of the blade forging process.

CAE Analysis on the Precision Forging of Big Semimonocoque of Vehicle Axle

2015 ◽  
Vol 713-715 ◽  
pp. 200-204
Author(s):  
Ju Li Li ◽  
Xiao Xi Wang ◽  
Rui He ◽  
Xin Xin Qian
Keyword(s):  
Strain Distribution ◽  
Equivalent Stress ◽  
Process Research ◽  
Technological Parameters ◽  
Forging Process ◽  
Precision Forging ◽  
Cae Analysis ◽  
Metal Materials ◽  
3D Software ◽  
Deform 3D

A CAE analysis on the precision forging of big semimonocoque of vehicle axle was conducted based on DEFORM-3D software. It discussed effects of forging billet size and shape on the forging property and effect of forging shape on the flow law of metal materials, and analyzed equivalent stress, strain distribution and load-stroke curve during the forging process. Research results are used to optimize mold structure and technological parameters. Precision forging of big semimonocoque was verified valid by practical production.

The Quality Improvement in Manufacturing “Screw”-Parts Using the DEFORM-3D Software

2016 ◽  
Vol 684 ◽  
pp. 468-472 ◽  
Author(s):  
Sergey Zvonov ◽  
Aleksey Shlyapugin
Keyword(s):  
Aluminum Alloy ◽  
Quality Improvement ◽  
High Speed ◽  
Strain State ◽  
High Efficiency ◽  
Metal Flow ◽  
Stress Strain ◽  
Stress Strain State ◽  
3D Software ◽  
Deform 3D

The check of developed inventory for high-speed stamping "Screw"-part forging fabricated from aluminum alloy by using DEFORM is performed. The high efficiency of the program is shown. The characteristic of metal flow and stress-strain state during the processing is opened.

Study on Precision Forging Schemes of Hypoid Driving Gear

2012 ◽  
Vol 472-475 ◽  
pp. 692-695
Author(s):  
Jian Hua Wang ◽  
Fu Xiao Chen
Keyword(s):  
Equivalent Stress ◽  
Three Dimensional ◽  
Equivalent Strain ◽  
Precision Forging ◽  
Forming Technology ◽  
Blank Shape ◽  
Simulation Results ◽  
Three Dimensional Models ◽  
3D Software ◽  
Deform 3D

By analyzing the characteristics and forming technology of hypoid driving gear, it was suitable for adopting fully enclosed die forging principle to form the gear. Based on different forging methods, three kinds of blank shape and corresponding forming schemes were designed. The three dimensional models of blank and die were created by the UG software. The three forming schemes were simulated by the Deform-3D software. The simulation results of distribution of equivalent stress, distribution of equivalent strain and load-stroke curve were comparatively analyzed. Then the most reasonable scheme was chosen. At last, the rationality of numerical simulation can be further verified by the optimized scheme was proved by experiment.

FE Simulation of Die Forging Process for High Pressure Valve Body

2013 ◽  
Vol 763 ◽  
pp. 207-210
Author(s):  
Yang Yang ◽  
Li Wen Zhang ◽  
Zhi Zhu ◽  
Jian Lin Zhang
Keyword(s):  
Finite Element ◽  
High Pressure ◽  
Flow Field ◽  
Fe Simulation ◽  
Metal Flow ◽  
Valve Body ◽  
Forging Process ◽  
Die Forging ◽  
Good Guide ◽  
Deform 3D

In this paper, based on the finite element (FE) software Deform 3D, the simulation of the die forging process of a high pressure valve body was conducted. The deformation field and the metal flow field of billet were obtained and analyzed in detail. In addition, the effect of upsetting depth on the die forging process of high pressure valve body was also discussed. This study can provide a good guide for the following researches and practical industry.

Influence of Friction on Metal Flow Behaviour and Die Stress of Backward Extrusion

2011 ◽  
Vol 117-119 ◽  
pp. 1719-1722
Author(s):  
Yong Shun Yang ◽  
Tian Tian Yin ◽  
Ke Feng
Keyword(s):  
Numerical Simulation ◽  
Metal Flow ◽  
Extrusion Process ◽  
Flow Behaviour ◽  
Backward Extrusion ◽  
Die Stress ◽  
3D Software ◽  
Deformation Area ◽  
Deform 3D ◽  
Unit Pressure

In the paper, the Deform-3D software was used to simulate the mechanism of metal flow behaviour under the influence of different friction in the backward extrusion process, and further study its influence on die stress. The numerical simulation demonstrates that: smaller friction could reduce difficult deformation area of extrusion metal significantly; friction state not only affected the plastic deformation extent, but also would increase the consumption of extrusion energy; the unit pressure of punch and stress of inner wall increased along with the increase of friction, meanwhile, the ratio of them increased as well.

scholarly journals A Special Extrusion-shear Manufacturing Method for Magnesium Alloy Rods Based on Finite Element Numerical Simulation and Experimental Verification

2022 ◽  
Author(s):  
Ou Zhang ◽  
Hongjun Hu ◽  
Huiling Zhang ◽  
Hui Zhao ◽  
Ding-fei Zhang ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Metal Flow ◽  
Temperature Fields ◽  
Extrusion Speed ◽  
Manufacturing Method ◽  
Grain Sizes ◽  
Friction Factors ◽  
Finite Element Numerical Simulation ◽  
3D Software ◽  
Deform 3D

Abstract To research the influences of process parameters on a special extrusion-shearmanufacture method for magnesium alloy rods, deform-3d software with finite elementsimulations has been used to analyze the material flows of deformed magnesium alloysAZ31B during the extrusion-shear (ES) process, as well as the grain sizes anddistribution of extrusion loads, stresses and strains, and blank temperatures. Temperaturefields, stress fields, strain fields and temperature fields varying with different blankpreheating temperatures, extrusion speed and extrusion ratios were simulated. Influences ofdifferent extrusion conditions and different die structures on microstructures of rods prepared by ES process has been researched. Extrusion forces decrease with the increasing extrusion temperatures, decreasing extrusion ratios, increasing die channel angles and decreasing friction coefficients. The flow velocities of metal in the ES die increase with development of ES process. Increasing the channel angles and reducing the friction factors would increase the outflow velocities of metal, but it has little effect on the uniformity of metal flow. The increase in friction and extrusion speed would increase the temperatures of the ES die. The ES process can prepare finer and more uniform microstructures than those prepared by direct extrusion under the same conditions.

Research into the Effect of Speed Mismatch during Continuous Rolling on the Process Parameters

2021 ◽  
Vol 316 ◽  
pp. 208-213
Author(s):  
Sergey O. Nepryakhin ◽  
Olga V. Vodopyanova
Keyword(s):  
Rolling Process ◽  
Rolling Speed ◽  
Continuous Rolling ◽  
Technological Parameters ◽  
Wire Mill ◽  
Small Deviations ◽  
Simulation Results ◽  
Rolling Torque ◽  
3D Software ◽  
Deform 3D

The paper analyzes the influence of tension (dam) on the technological parameters of the rolling process (spreading, force and rolling torque). For the analysis, a model of continuous rolling in three adjacent stands was developed, using the Deform 3D software. The adequacy of the model was confirmed by comparing the experimental data from the small-section wire mill 150 and the simulation results. The error in determining the forming was 0.4%, and in determining the power parameters was 11%. Further, a computational experiment was planned, to identify the effect of mismatched of rolling speeds on technological parameters. According to the results of calculations, graphs of changes in technological parameters were constructed. It is established that, even small deviations of rolling speed from the matched mode lead to significant changes in technological parameters.

Simulation of Cold Extrusion Process of Hollow Pieces

2013 ◽  
Vol 446-447 ◽  
pp. 270-274
Author(s):  
Jia Long Ren ◽  
Xiao Xia Chen ◽  
Chun Yan Zhang ◽  
Xiao Fei Liu
Keyword(s):  
Strain Field ◽  
Cone Angle ◽  
Metal Flow ◽  
Extrusion Process ◽  
Cold Extrusion ◽  
Metal Deformation ◽  
3D Software ◽  
The Impact ◽  
Deform 3D ◽  
Virtual Velocity

The impact of friction factor, thickness of the cold extrusion, semi-cone angle and other factors on cold extrusion was analyzed. Various process parameters were set and optimized. Cold extrusion process of hollow pieces was simulated by DEFORM-3D software. Through the simulation of the virtual velocity field, strain field, stress field, load - stroke curve and metal deformation process, the flow velocity of the metal and the deformation of the workpiece were studied. The metal flow routes and the parts that are easy to wear in die were gained. The above research results provide valuable references for the processing of hollow pieces.

Numerical Analysis of Rolling Extrusion Process of a Toothed Shaft from Titanium Alloy Ti6Al4V

2014 ◽  
Vol 622-623 ◽  
pp. 1215-1220
Author(s):  
Jarosław Bartnicki ◽  
Janusz Tomczak ◽  
Zbigniew Pater
Keyword(s):  
Titanium Alloy ◽  
Numerical Analysis ◽  
Metal Flow ◽  
Fem Analysis ◽  
Extrusion Process ◽  
Technological Parameters ◽  
Forming Process ◽  
Radial Forces ◽  
Titanium Alloy Ti6al4v ◽  
Deform 3D

This paper presents results of numerical calculations of rolling extrusion process of a toothed shaft made from titanium alloy Ti6Al4V. FEM analysis was conducted applying the software DEFORM 3D for the process chosen technological parameters. The kinematics of metal flow in the area of the formed teeth was analyzed. Distributions of stresses, strains and temperatures during teeth forming were determined. Calculated values of axial and radial forces and moments acting on rotating roll tools allow for designing of tools for experimental verification of the designed forming process.

Development of Process Optimization for an Intelligent Knowledge-Based System for Spur Gear Precision Forging Die Design

2004 ◽  
Author(s):  
El-Sayed Aziz ◽  
C. Chassapis
Keyword(s):  
Parametric Design ◽  
Metal Flow ◽  
Optimization Method ◽  
Spur Gear ◽  
Die Design ◽  
Design System ◽  
Process Conditions ◽  
System Utilization ◽  
Forging Process ◽  
Precision Forging

Forging sequence design is mainly carried out using empirical rules for the design of the intermediate die shapes, in addition to many trail-and-error runs resulting in prolonged development times and higher costs. An integrated optimal design of preform shapes and process conditions approach to minimize the energy required is essential. The research presented in this article aims at developing an optimization algorithm to determine the optimum intermediate die shape-designs that minimize the total energy required during the forging process sequence. It is based on the results obtained in the previous research with focus on knowledge base and database representation to design precision forging solid gears and provide detailed process specification. A three-step algorithm, which addresses gear construction design, manufacturability analysis of gear construction and die-design optimization, is used to generate the parametric gear model and automatically extract design information for manufacturing process planning based on the feature-based parametric design system. Utilization of the shape optimization method for preform stages avoids costly production problems. The optimized approach provides accurate description of all stages involved in the forging process. Forging load and energy required, along with metal flow and detailed geometry specification of die forms for every forging stage are obtained. The forging energy requirements based on this approach are as much as 25% lower than those arrived from die designs based on actual tooth profile geometry.

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