Research of Die Cavity Warm Extrusion on 3Cr2W8V Steel One-Off Forming Technology

2011 ◽  
Vol 418-420 ◽  
pp. 1270-1273
Author(s):  
Wei Du ◽  
Guo Sen Yuan ◽  
Cheng Bin Li
Keyword(s):  
Service Life ◽  
Structure Parameters ◽  
Extrusion Die ◽  
Forming Technology ◽  
Forming Parameters ◽  
Die Forging ◽  
Die Structure ◽  
Extrusion Forming ◽  
Forging Die ◽  
Warm Extrusion

The problems of 3Cr2W8V steel concave die forging production must be solved, such as too many procedures, high cost and mold crack. Through the use of a warm extrusion forming method it could make one-off forming die cavity come true, more practical warm extrusion forming parameters and extrusion die structure parameters were obtained. A suitable lubricant was selected out so that the processed forging die organization was improved and forging streamline distribution was more rational. The service life of forging die increased, and warm extrusion forming technology was applied in the mold production.

The Optimization Design Study of Warm Extrusion Forming Technology for Piston Head Semi-Processed

2013 ◽  
Vol 803 ◽  
pp. 375-378 ◽  
Author(s):  
Qing Qing Lv ◽  
Qi Ming Guan ◽  
Li Quan Yang ◽  
Xi Kui Wang
Keyword(s):  
High Performance ◽  
Optimization Design ◽  
Orthogonal Experiment ◽  
Range Analysis ◽  
Forming Process ◽  
Molding Method ◽  
Piston Head ◽  
Forming Technology ◽  
Extrusion Forming ◽  
Warm Extrusion

Aiming at the problems of high performance piston head can not produced by using casting and hot die forging, the warm extrusion molding method is proposed, based on the analysis of factors influencing for forming, rational scheme of orthogonal experiment was designed, a series of analysis for simulation results by using the range analysis method and comprehensive balance method, the optimal forming process parameters combination are identified, the optimal result are verified by the DEFORM software.

Research and Application of Warm Extrusion Forming Technology for Internal Combustion Engine Piston Head

2013 ◽  
Vol 706-708 ◽  
pp. 452-455
Author(s):  
Li Quan Yang ◽  
Qing Qing Lv ◽  
Lei Zhao
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Production Equipment ◽  
Forming Process ◽  
Piston Head ◽  
Forming Technology ◽  
Engine Piston ◽  
Extrusion Forming ◽  
Warm Extrusion

In order to improve the performance of the piston head on the existing conditions, and the warm extrusion forming technology was put forward based on the internal combustion engine piston head traditional production process. The warm extrusion process scheme and finite element boundary conditions was designed reasonable based on research the piston head forming process, the thermal-mechanical coupling model was established. The numerical simulation of the warm extrusion forming was carried out on the DEFORM software platform. The distributions of warm extrusion forming process strain field, stress field and temperature field were forecasted through the theoretical calculation and simulation. And the production equipment tonnage and die structure form were determined preliminarily. The possible problems of forming process were discussed, and the countermeasures were also put forward, provide the reliable reference for internal combustion engine piston head forming process improvement.

Research on Friction Hot Forming Technology of Hydraulic Cylinder

2014 ◽  
Vol 602-605 ◽  
pp. 37-40
Author(s):  
Ying Min Gao ◽  
Jing Li ◽  
Jian Hui Yao
Keyword(s):  
Service Life ◽  
Hydraulic Cylinder ◽  
Hot Forming ◽  
Air Spring ◽  
Forming Technology

Hydraulic parts with three sealing devices always leak in use, absorber and air spring for example. Hydraulic cylinder can be sealed by itself if friction hot forming technology is adopted on hydraulic cylinder at both ends. By going through the technology, two sealing devices of hydraulic parts are saved, the leak of hydraulic parts is avoided, the rigidity of hydraulic parts is enhanced, the structure of hydraulic parts is optimized and the service life of hydraulic parts is increased.

A Measure of Optimization of Technological Parameters to Improve the Formability of Aluminum Sheet a 1050 H14 by SPIF Technology

2020 ◽  
Vol 863 ◽  
pp. 51-58
Author(s):  
Nguyen Phan Anh ◽  
Tuyen Vo ◽  
Khanh Dien Le ◽  
Thanh Nam Nguyen
Keyword(s):  
Feeding Rate ◽  
Single Point ◽  
Regression Equation ◽  
Parameters Optimization ◽  
Aluminum Sheet ◽  
Technological Parameters ◽  
Forming Technology ◽  
Forming Parameters ◽  
Forming Angle ◽  
Optimal Set

The objective of this paper is to select a set of technological forming parameters including vertical feed Δz, feeding rate of Vxy of the tool (a kind of pestle but no-cutting edges), the diameter of tool D and the revolutions per minute of tool n to achieve the highest forming ability of aluminum sheet A1050 H14 (according to JIS G3101Japanese standard) when forming metal sheet by Single Point Incremental Forming Technology-SPIF. The content of the article consists of 3 processes: Pre-design of experiment (Pre-DOE) to select of a set of reasonable limited parameters when forming aluminum sheet A1050 H14 models when forming on the existent specialized SPIF machine in the National Key Laboratory of Digital Control and System Engineering laboratory (DCSELAB); Performing aluminum sheet A1050 H14 models on the Pre-DOE to obtain the forming angle values; Evaluating the experimental results by analysis of variance; Setting up the regression equation of the angle of deformability with influence parameters; Optimization the regression equation to select an optimal set of forming parameters to gain the highest deformability of aluminum sheet A1050 H14.

Precision Forming and Die Design for Octahedral Shell of Static Stents

2011 ◽  
Vol 117-119 ◽  
pp. 1646-1650
Author(s):  
Ting Liu ◽  
Xue Wen Chen ◽  
Shu Li Pei
Keyword(s):  
Die Design ◽  
Work Piece ◽  
Manufacturing Cost ◽  
Work Process ◽  
Optimization Analysis ◽  
Work Requirements ◽  
Simulation And Optimization ◽  
Forming Technology ◽  
Warm Extrusion

Static stents is the switch component that plays the role of fixing and supporting. It will received impact, the attrition and reverse function in the work process, which requires high mechanical properties to meet their work requirements. This paper uses the forming technology of "the pre-formation +warm extrusion + cold finishing "to form the static support ,and it carries on the numerical simulation and optimization analysis, which not only improve the work piece performance greatly and reduce the manufacturing cost.

Honeycomb Radiator Cold Extrusion Forming Research

2013 ◽  
Vol 753-755 ◽  
pp. 149-154
Author(s):  
Sheng Guan Qu ◽  
Li Kui Liu ◽  
Wen Long Li ◽  
Guang Hong Wang ◽  
Xiao Qiang Li
Keyword(s):  
Thermal Performance ◽  
Crucial Role ◽  
Flow Condition ◽  
Optimization Design ◽  
Strain State ◽  
Cold Extrusion ◽  
Forming Process ◽  
Stress Strain ◽  
Die Structure ◽  
Extrusion Forming

Radiators plays a crucial role in thermal performance of LED Lamp, and the latest development of LED honeycomb radiator forming process has been discussed. Moreover, stress-strain state in the dies and blank flow condition with different die structures have been studied by DEFORM. Accordingly the feasibility of the optimization design also has been demonstrated. The results show that the substance flowing has a serious affect on the force to the die. And with an appropriate die structure, the uniformity of forming can be greatly improved and the force to the die can be reduced.

Sign in / Sign up

Export Citation Format

Share Document