Effects of cooling channel layout on the cooling performance of rapid injection mold

2021 ◽  
Author(s):  
Chil-Chyuan Kuo ◽  
Zi-Fan Jiang ◽  
Ming-Xue Yang ◽  
Bing- Jun You ◽  
Wei-Cheng Zhong
Keyword(s):  
Injection Mold ◽  
Cooling Channel ◽  
Cooling Performance ◽  
Rapid Injection

Manufacturing Process of EP Matrix Composite Rapid Injection Mold and Application Case

2014 ◽  
Vol 1061-1062 ◽  
pp. 460-464
Author(s):  
Yong Di Zhang ◽  
Bin Zhang ◽  
Yan Fang Yue ◽  
Guang Yang
Keyword(s):  
New Product Development ◽  
Manufacturing Process ◽  
Injection Mold ◽  
Layer By Layer ◽  
3D Data ◽  
Rapid Injection ◽  
Development Cycle ◽  
Ep Matrix ◽  
Tooling Technology ◽  
Rotary Switch

The prototype can be produced from RP(Rapid Prototyping) technology directly by 3D data model, by dispersing and accumulating layer by layer principle, so the new product development cycle can be shortened greatly. RT (Rapid Tooling) technology is a new method and technology for rapid manufacturing mold, which is developed from RP technology. In this research, a rotary switch prototype was produced by laser stereolithography (SL) technology. Using the prototype as master pattern , a injection mold was made by metal casting method , using the composite composed of epoxy resin E51, aluminum powder, quartz powder , graphite and others, the manufacturing process was described in detail, and the ABS samples were successfully obtained through trial production in the injection molding machine.

Design and fabrication of multi-cavity injection mold using hot runners and direct edge gates

2014 ◽  
Vol 228 (15) ◽  
pp. 2790-2798 ◽  
Author(s):  
Tae-Il Seo ◽  
Byeong-Uk Song ◽  
Jeong-Won Lee
Keyword(s):  
Mold Design ◽  
Injection Mold ◽  
Cooling Channel ◽  
Direct Edge ◽  
Injection Mold Design ◽  
Computer Aided ◽  
Structural Differences ◽  
Filling Analysis ◽  
Cavity Cooling ◽  
Plastic Injection

A hot runner system can provide many advantages to plastic injection mold engineers for improving product quality. In edge gate systems in particular, the gate traces can appear on the side of products rather than the top. However, it is difficult to establish hot runner systems using edge gates because of their structural differences from conventional gate systems. This article presents the entire process of preparing a 48-cavity plastic injection molding system with edge gates. This process consists of 48-cavity injection mold design, structural analysis, verification of design plans, filling analysis of multi-cavity, cooling channel design on the basis of cooling analysis, fabrication of the mold system, and test injection. All presented computer-aided engineering analyses were conducted using ANSYS and MoldFlow.

scholarly journals Development and Application of Rapid Injection Molds Using Aluminum-Filled Epoxy Resins for Metal Injection Molding

2021 ◽  
Author(s):  
Chil-Chyuan Kuo ◽  
Xin-Yu Pan ◽  
Cheng-Xuan Tasi
Keyword(s):  
Injection Molding ◽  
Epoxy Resins ◽  
Metal Injection Molding ◽  
Manufacturing Cost ◽  
Injection Mold ◽  
Rapid Injection ◽  
Near Net Shape ◽  
Tooling Technology ◽  
Manufacturing Time ◽  
Conventional Machining

Abstract Metal injection molding (MIM) is a near net-shape manufacturing process combing conventional plastic injection molding and powder metallurgy. Two kinds of injections molds for MIM were developed using conventional mold steel and aluminum (Al)-filled epoxy resins in this study. The characteristics of the mold made by rapid tooling technology (RTT) were evaluated and compared to that fabricated conventional machining method through MIM process. It was found that the service life of the injection mold fabricated by Al-filled epoxy resins is about 1300 molding cycles. The saving in manufacturing cost of an injection mold made by Al-filled epoxy resins is about 30.4% compared to that fabricated conventional mold steel. The saving in manufacturing time of an injection mold made by RT technology is about 30.3% compared to that fabricated conventional machining method.

An Experimental and Numerical Investigation of the Effect of Cooling Channel Crossflow on Film Cooling Performance

2007 ◽  
Author(s):  
Harald Peter Kissel ◽  
Bernhard Weigand ◽  
Jens von Wolfersdorf ◽  
Sven Olaf Neumann ◽  
Antje Ungewickell
Keyword(s):  
Numerical Investigation ◽  
Film Cooling ◽  
Internal Cooling ◽  
Cooling Channel ◽  
Cooling Effectiveness ◽  
Cooling Performance ◽  
Film Cooling Effectiveness ◽  
Gas Channel ◽  
Cooling Hole ◽  
Flow Situation

This paper presents an experimental and numerical investigation into film cooling performance over a flat plate. As previous studies have shown, the flow situation at the entry-side of the cooling hole shows a notable effect on film cooling performance. The present investigation takes this into account feeding the cooling holes from an internal cooling channel and not from a stagnant plenum. High resolution heat transfer coefficient and adiabatic film cooling effectiveness distributions received from transient liquid crystal experiments are presented. The Reynolds numbers of the hot gas channel and the coolant crossflow feeding the holes are varied. Furthermore, the effects of 45° angled ribs, introduced into the cooling channel, are investigated. The experiments are performed at constant blowing, momentum and pressure ratios. Numerical calculations of the adiabatic film cooling effectiveness for selected configurations using FLUENT are presented. Comparison reveals the influence of coolant channel Reynolds number and the introduced ribs on the cooling hole flow pattern leading to a changed film cooling performance.

Comparison of Cooling Performance between High Thermal Conductivity Steel (HTCS 150) and Hot Work Tool Steel (SKD 61) Insert for Experimental Tool Using Finite Element Analysis

2014 ◽  
Vol 903 ◽  
pp. 163-168 ◽  
Author(s):  
Zahari Taha ◽  
Ahmad Razlan Yusoff ◽  
Mohamad Farid Mohamd Sharif ◽  
M. Ali Hanafiah Saharudin ◽  
Mohd Fawzi Zamri
Keyword(s):  
Finite Element ◽  
Cooling System ◽  
Hot Stamping ◽  
Cooling Channel ◽  
The Finite Element Method ◽  
Element Analysis ◽  
Cooling Performance ◽  
Cooling Channels ◽  
Channel Parameters ◽  
Tool Cooling

In hot stamping, the tool cooling system plays an important role in optimizing the process cycle time as well as maintaining the tool temperature distribution. Since the chilled water is forced to circulate through the cooling channels, there is a need to find the optimal parameters of the cooling channels that will cool down the tool efficiently. In this research paper, the cooling channel parameters that significantly influence the tool cooling performance such as size of the cooling holes, distance between the cooling holes and distance between the cooling holes and the tool surface contour are analyzed using the finite element method for both static and thermal analysis. Finally the cooling performance of two types of materials is compared based on the optimized cooling channel parameters.

Design and Manufacture of Injection Mold Inserts Using Electron Beam Melting

2014 ◽  
Vol 136 (6) ◽  
Author(s):  
Arif Rochman ◽  
Althea Kate Borg
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Injection Molding ◽  
Heat Conductivity ◽  
Electron Beam Melting ◽  
Injection Mold ◽  
Cooling Performance ◽  
Cooling Channels ◽  
Design And Manufacture

The capability of producing injection tool inserts using an additive manufacturing (AM) technology was investigated. Using electron beam melting (EBM), the restriction of drilling straight cooling channels could be eliminated and freeform channels with sufficient powder removal were achieved. EBM parameters and the design of the cooling channels strongly influence the sintering degree of the powder trapped in the channels and thus the ease of the powder removal. Despite the low heat conductivity of the new inserts made from Ti6Al4V, the cooling performance was the same as for the conventional inserts. However, the use of Ti6Al4V is advantageous, since the expanding agent used in injection molding is very corrosive.

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