scholarly journals A Tool for Predicting the Effect of the Plunger Motion Profile on the Static Properties of Aluminium High Pressure Die Cast Components

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 798 ◽  
Author(s):  
Elena Fiorese ◽  
Franco Bonollo ◽  
Eleonora Battaglia
Keyword(s):  
High Pressure ◽  
Measured Data ◽  
Chemical Compositions ◽  
Cast Aluminum ◽  
Static Properties ◽  
Cast Aluminum Alloys ◽  
Die Cast ◽  
Cold Chamber ◽  
Pressure Die Casting ◽  
Motion Profile

The availability of tools for predicting quality in high pressure die casting is a challenging issue since a large amount of defects is detected in components with a consequent worsening of the mechanical behavior. In this paper, a tool for predicting the effect of the plunger motion on the properties of high pressure die cast aluminum alloys is explained and applied, by demonstrating its effectiveness. A comparison between two experiments executed through different cold chamber machines and the same geometry of the die and slightly different chemical compositions of the alloy is described. The effectiveness of the model is proved by showing the agreement between the prediction bounds and the measured data. The prediction model proposed is a general methodology independent of the machine and accounts for the effects of geometry and alloy through its coefficients.

Rheology Forming Process of Cast Aluminum Alloys with Electromagnetic Applications

2006 ◽  
Vol 116-117 ◽  
pp. 445-448 ◽  
Author(s):  
T.W Kim ◽  
C.G. Kang ◽  
S.S. Kang
Keyword(s):  
High Pressure ◽  
Die Casting ◽  
Gas Content ◽  
Cast Aluminum ◽  
Forming Process ◽  
Cast Aluminum Alloys ◽  
Low Pressure Die Casting ◽  
Thin Walled ◽  
Semi Solid ◽  
Pressure Die Casting

This paper focuses on a rheo-forming of arm parts fabricated by an electromagnetic stirring system (EMS). This forming process takes place under high pressure of high pressure die casting and thin-walled casting is possible. Also, the productivity is higher than for low pressure die casting because of the shorter cycle time. Rheo-forming is advantageous because forming is performed in the semi-solid state with laminar flow and the gas content is low, which makes welding possible. Therefore, this paper examines arm parts with EMS and has investigated the mechanical properties after T6 and T5 heat-treatment.

Ferrous and Nonferrous Alloys

2005 ◽  
pp. 39-76
Keyword(s):  
Cast Aluminum ◽  
Cast Irons ◽  
Zinc Alloys ◽  
Bending Fatigue ◽  
Cast Aluminum Alloys ◽  
Die Cast ◽  
Alloy Steels ◽  
Bending Fatigue Strength ◽  
Gear Steels ◽  
Nonferrous Alloys

Abstract This chapter describes important requirements for ferrous and nonferrous alloys used for gears. Wrought surface-hardening and through-hardening carbon and alloy steels are the most widely used of all gear materials and are emphasized in this chapter. The processing characteristics of gear steels and the bending fatigue strength and properties of carburized steels are reviewed. In addition to wrought steels, the chapter provides information on the other iron-base alloys that are used for gears, namely cast carbon and alloy steels, gray and ductile cast irons, powder metallurgy irons and steels, stainless steels, and tool steels. In terms of nonferrous alloys, the chapter addresses copper-base alloys, die cast aluminum alloys, zinc alloys, and magnesium alloys.

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