Optimization of cooling channel design and spray patterns in aluminum die casting using infrared thermography

1996 ◽  
Author(s):  
Mark Prystay ◽  
Chee A. Loong ◽  
Ky T. Nguyen
Keyword(s):  
Infrared Thermography ◽  
Die Casting ◽  
Cooling Channel ◽  
Channel Design

scholarly journals Automatic cooling channel design for injection moulds

2019 ◽  
Author(s):  
Ch. Hopmann ◽  
M. Theunissen ◽  
T. Schneppe ◽  
M. Schmitz
Keyword(s):  
Cooling Channel ◽  
Channel Design

Heat Transfer Measurements in an Internal Cooling System Using a Transient Technique With Infrared Thermography

2012 ◽  
Author(s):  
Christian Egger ◽  
Jens von Wolfersdorf ◽  
Martin Schnieder
Keyword(s):  
Heat Transfer ◽  
Data Analysis ◽  
Infrared Thermography ◽  
Outer Surface ◽  
Cooling System ◽  
Internal Cooling ◽  
Test Model ◽  
Cooling Channel ◽  
Transfer Coefficients ◽  
Heat Transfer Coefficients

In this paper a transient method for measuring heat transfer coefficients in internal cooling systems using infrared thermography is applied. The experiments are performed with a two-pass internal cooling channel connected by a 180° bend. The leading edge and the trailing edge consist of trapezoidal and nearly rectangular cross sections, respectively, to achieve an engine-similar configuration. Within the channels rib arrangements are considered for heat transfer enhancement. The test model is made of metallic material. During the experiment the cooling channels are heated by the internal flow. The surface temperature response of the cooling channel walls is measured on the outer surface by infrared thermography. Additionally, fluid temperatures as well as fluid and solid properties are determined for the data analysis. The method for determining the distribution of internal heat transfer coefficients is based on a lumped capacitance approach which considers lateral conduction in the cooling system walls as well as natural convection and radiation heat transfer on the outer surface. Because of time-dependent effects a sensitivity analysis is performed to identify optimal time periods for data analysis. Results are compared with available literature data.

Optimum Cooling Channels Design and Thermal Analysis of an Injection Moulded Plastic Part Mould

2007 ◽  
Vol 561-565 ◽  
pp. 1999-2002 ◽  
Author(s):  
Abul B.M. Saifullah ◽  
Syed H. Masood
Keyword(s):  
Cooling Time ◽  
Free Form ◽  
Cooling Channel ◽  
Channel Design ◽  
Conformal Cooling Channel ◽  
Plastic Part ◽  
Element Analysis ◽  
Conformal Cooling ◽  
Cooling Channels ◽  
Conformal Cooling Channels

Cooling channel design is important in mould designs to achieve shorter cycles, dimensional stability and reduced part stresses. Traditionally, cooling channels have been machined into mould components to avoid interference with the ejection system, coring, cavity and other mould details. Over the years straight drilled cooling channels have given away, in part, to conformal cooling technique often using free form fabrication techniques. This paper presents a study of optimised mould design with conformal cooling channel using finite element analysis. Various configurations of conformal cooling channels have been developed. The part cooling time using the conformal cooling channels and the straight cooling channels in the mould are computed using the Pro/Mechanica Thermal FEA software. Results are presented based on temperature distribution and cooling time using steady state and transient analysis conditions. The results show a reduction in cycle time for the plastic part with conformal cooling channel design.

S1360104 Surface Finishing of Cooling Channel inside the Die Casting Dies with Free Abrasive Grains : Propose for Spot Cooling Channel

2015 ◽  
Vol 2015 (0) ◽  
pp. _S1360104--_S1360104-
Author(s):  
Yoshiki OCHIAI ◽  
Tatsuaki FURUMOTO ◽  
Akira HOSOKAWA ◽  
Tomohiro KOYANO ◽  
Shuuji INAGAKI
Keyword(s):  
Die Casting ◽  
Surface Finishing ◽  
Cooling Channel ◽  
Abrasive Grains ◽  
Spot Cooling ◽  
Free Abrasive

Thermal Stress Analysis of the Die during High Pressure Casting

2014 ◽  
Vol 915-916 ◽  
pp. 1074-1077
Author(s):  
Wu Hu ◽  
Ming Long Kang ◽  
Jian Min Zeng
Keyword(s):  
Finite Element ◽  
High Pressure ◽  
Die Casting ◽  
The Other ◽  
Air Cooling ◽  
Pressure Casting ◽  
Cooling Channel ◽  
Finite Element Software ◽  
Efficient Measure ◽  
Pressure Die Casting

The distribution of temperatures and stresses in the die during high pressure die casting are computed through commercially finite element software developed by Wincast team, Germany. The deformation of the die during its continual running is predicted under the conditions without and with air cooling. The simulated results show that the regions of die, which contact with the casting, is subjected to compressed stresses and the other regions of the die subjected to tensile stresses. Compressed stresses are changed steeply from tensile to compress on the boundary between the casting and the inner cavity walls, which will results in hot-fatigue in those regions of the die. Setting cooling channel within the die is an efficient measure for eliminating hot-fatigue and prolonging life of the die.

Sign in / Sign up

Export Citation Format

Share Document