搜索结果: 1-12 共查到“机械工程 extrusion”相关记录12条 . 查询时间(0.048 秒)
Lateral extrusion of tailor welded aluminum alloy pipes with a lost core of low temperature melting alloy
Tube forming Tailored blank Lateral extrusion
2009/12/14
Purpose: In this paper, the authors employ tailor welded aluminum alloy pipes for lateral extrusion process with a lost core to perform a hollow light-weight-part.
Design/methodology/approach: The pi...
A quality problem in seam welds in aluminum extrusion
Metallic alloys Seam weld Aluminum Extrusion Porthole die
2009/12/1
Purpose: Seam welds occur during the hollow profile extrusion; the billet’s material is divided into separate
metal streams by the bridges of the die which support a mandrel, and then these metal str...
Properties of seam welds produced with different extrusion parameters
Mechanical properties Seam weld Extrusion Aluminum
2009/12/1
Purpose: This study focuses to investigate the effects of different extrusion parameters on microstructural
properties of seam (longitudinal) welds in aluminum extrusion profiles.
Design/methodolo...
Direct and Indirect Extrusion of Sintered Preform at the End of Stroke
Sintered preform Upper bound approach Inter-facial friction Strain Rates Velocity Fields
2009/9/30
The paper reports a theoretical investigation into various aspects of cold forming through conical converging die at the end of stroke. At this stage of the process, there occur some phenomena that re...
3D finite element analysis of metal flow in hot aluminium extrusion of T-shaped profile with various offset pockets
Extrusion Finite element model Aluminium
2008/12/30
Purpose: The present paper has therefore investigated influence of offset pocket design on metal flow behaviour
in hot aluminium extrusion of a T-shaped profile.
Design/methodology/approach: A serie...
Purpose: The work presented in this paper might be used for basic data in the design of a lot extruded aluminum products using the variable section extrusion process.
Design/methodology/approach: The...
Sensitivity analysis in life prediction of extrusion dies
Sensitivity analysis Die life Fracture failure
2007/11/30
Purpose: Building up on the fracture mechanics (Paris law for crack propagation) based fatigue life prediction model developed earlier by the authors, Monte Carlo simulation has been performed to eval...
A monitoring system of an extrusion line was developed. Three main hydraulic pumps support the extrusion line in
MODAL. Data of energy consumption was collected from the power supply of these main pu...
Purpose: Lateral extrusion process with a lost core for cross fittings is suggested. At first, cavity of tube is filled up by low temperature melting melting alloy. Then low temperature melting materi...
Effect of different extrusion temperature and speed on extrusion welds
Mechanical properties Extrusion welds Extrusion temperature
2007/8/30
Purpose: In this study, it is aimed to investigate the structure of seam weld and transverse weld sections comparatively. To achieve this, it is studied on an extrusion profile type which has seam wel...
Modelling of semi-liquid aluminium flow in extrusion with temperature effect
Innovative materials and foundry technologies thixoforming
2007/3/12
During thixoforming, when the material is in the semi-liquid state, it exhibits thixotropic properties, i.e. the unsupported material remains stiff and holds its shape so it can be readily handled, bu...
The investigate of flow in direct extrusion process of heterogeneous materials flow
innovative materials and foundry technologies extrusion
2007/3/12
The results of experimental investigations were introduced in range of verification of model investigations results (in utilization of supplementary materials) with results of investigations on real m...