Development of a low-cost wax injection mold with high cooling efficiency

2017 ◽  
Vol 93 (5-8) ◽  
pp. 2081-2088 ◽  
Author(s):  
Chil-Chyuan Kuo ◽  
Wei-Hua Chen ◽  
Xue-Zhe Liu ◽  
Yi-Lin Liao ◽  
Wei-Jie Chen ◽  
...  
Keyword(s):  
Low Cost ◽  
Injection Mold ◽  
Cooling Efficiency ◽  
Wax Injection

Design of Advanced Injection Mold to Increase Cooling Efficiency

2019 ◽  
Vol 7 (2) ◽  
pp. 319-328 ◽  
Author(s):  
Hong-Seok Park ◽  
Xuan-Phuong Dang ◽  
Dinh-Son Nguyen ◽  
Saurabh Kumar
Keyword(s):  
Injection Mold ◽  
Cooling Efficiency

Surface Differential Scanning Calorimeter for Evaluation of Evaporative Cooling Efficiency

2012 ◽  
Vol 7 (2_suppl) ◽  
pp. 155892501200702
Author(s):  
Ruslan Burtovyy ◽  
Binyamin Rubin ◽  
Mahmut O. Kesimci ◽  
Igor Luzinov ◽  
Jeffery Owens ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Differential Scanning Calorimeter ◽  
Low Cost ◽  
Evaporative Cooling ◽  
Cooling Power ◽  
Cooling Efficiency ◽  
Temperature Decrease ◽  
Heating Systems ◽  
Quantitative Analyses ◽  
Transfer Properties

We developed a Surface Differential Scanning Calorimeter for the quantitative analyses of thermodynamic and heat transfer properties of thin fibrous and porous samples. It has been demonstrated that the calorimeter is capable of measuring cooling power as well as temperature decrease in a reliable and reproducible way. Considering its low cost the equipment can be a valuable option for studying cooling/heating systems in laboratory settings.

LED Street Lamp Module Configuration Design

2013 ◽  
Vol 694-697 ◽  
pp. 3012-3015
Author(s):  
Yong Ping Zhang ◽  
Long Liu ◽  
Yun Cui Zhang ◽  
Guang Ye Wang ◽  
De Sheng Li ◽  
...  
Keyword(s):  
Heat Pipe ◽  
Heat Dissipation ◽  
Low Cost ◽  
Configuration Design ◽  
Cooling Efficiency ◽  
Optical Lens ◽  
Average Temperature ◽  
Dissipation Structure ◽  
Street Lamp ◽  
Modular Method

The configuration of LED street lamp is important for its high security and low cost requirements. The modular method is introduced to design LED street lamp with independent light source and heat dissipation structure. In the single module heat pipe technology radiator is used to improve the LED street lamp of the cooling efficiency. For the 60W LED module, the optical lens are designed with the angles of 60 ° and 30 ° respectively and the average temperature is 329 K on each observation sides of the module.

Anisotropic Wetting Behavior on Injection Molded Polypropylene Parts Inspired by Surface Structure of Moss

2015 ◽  
Vol 752-753 ◽  
pp. 168-171
Author(s):  
Martin Boruvka
Keyword(s):  
Surface Structure ◽  
Surface Properties ◽  
Manufacturing Process ◽  
Low Cost ◽  
Mold Insert ◽  
Injection Mold ◽  
Additional Processing ◽  
Injection Molded ◽  
Key Drivers ◽  
Thermoplastic Olefins

During the last years the carmakers interest is focused on polymer manufacturers to develop breakthrough solutions addressing the key drivers of reducing weight and cost. The use of polypropylene (PP) and other thermoplastic olefins is growing because of their low cost and good properties. Unfortunately, some of the same properties that make these plastics attractive to designers, also make them difficult to bond with adhesives or varnish. Non-polar character of PP results in poor surface properties and low wettability. Several methods of surface pretreatments have been used to improve its wettability, but all involves cost extending additional processing. Based on lessons from nature, one of the ways how to increase wettability is surface structuring. Injection mold insert designing and manufacturing process inspired by hydrophilic structure of the moss is presented. Due to cost reducing demands were used conventional processing methods.

scholarly journals A Low-Cost and Highly Efficient Method of Reducing Coolant Leakage for Direct Metal Printed Injection mold with Cooling Channels Using Optimum Heat Treatment Process Procedures

2021 ◽  
Author(s):  
Chil-Chyuan Kuo ◽  
Shao-Xuan Qiu ◽  
Xin-Yi Yang
Keyword(s):  
Heat Treatment ◽  
Injection Molding ◽  
Efficient Method ◽  
Low Cost ◽  
Injection Mold ◽  
Conformal Cooling ◽  
Cooling Channels ◽  
Highly Efficient ◽  
Optimum Heat ◽  
Optimum Heat Treatment

Abstract Metal additive manufacturing (MAM) provides lots of benefits and potentials in manufacturing molds or dies with sophisticated conformal cooling channels. It is known that the conformal cooling technology provides effective cooling to reduce cycle time for increasing productivity. Ordinarily, mold inserts fabricated by general printing procedures will result in coolant leakage in the injection molding process. The yield in the manufacturing of fully dense injection molding tools was limited to the very narrow working widow. In addition, high costs of fully dense injection mold fabricated by MAM constitute the major obstacle to its application in the mold or die industry. In general, the high cost of MAM is approximately 50-70% more expensive than conventional computer numerical control machining. In this study, a low-cost and highly efficient method of reducing coolant leakage for direct metal printed injection mold with cooling channels was proposed. This new method employs general process parameters to manufacture the green injection mold rapidly and then uses optimum heat treatment (HT) procedures to improve microstructure of the green injection mold. The results of this study revealed that optimum HT procedures can prevent coolant leakage and save manufacturing time of the injection mold fabricated by direct metal laser sintering. The evolution mechanisms of microstructure were investigated experimentally. The save in the injection mold manufacture time about 67% can be obtained.

scholarly journals A Simple Method of Reducing Coolant Leakage for Direct Metal Printed Injection Mold with Conformal Cooling Channels Using General Process Parameters and Heat Treatment

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7258
Author(s):  
Chil-Chyuan Kuo ◽  
Shao-Xuan Qiu
Keyword(s):  
Process Parameters ◽  
Injection Mold ◽  
Simple Method ◽  
General Process ◽  
Conformal Cooling ◽  
Cooling Stage ◽  
Cooling Channels ◽  
Metal Printing ◽  
Conformal Cooling Channels ◽  
Wax Injection

Direct metal printing is a promising technique for manufacturing injection molds with complex conformal cooling channels from maraging steel powder, which is widely applied in automotive or aerospace industries. However, two major disadvantages of direct metal printing are the narrow process window and length of time consumed. The fabrication of high-density injection molds is frequently applied to prevent coolant leakage during the cooling stage. In this study, we propose a simple method of reducing coolant leakage for a direct-metal-printed injection mold with conformal cooling channels by combining injection mold fabrication with general process parameters, as well as solution and aging treatment (SAT). This study comprehensively investigates the microstructural evolution of the injection mold after SAT using field-emission scanning electron microscopy and energy-dispersive X-ray spectroscopy. We found that the surface hardness of the injection mold was enhanced from HV 189 to HV 546 as the Ni-Mo precipitates increased from 12.8 to 18.5%. The size of the pores was reduced significantly due to iron oxide precipitates because the relative density of the injection mold increased from 99.18 to 99.72%. The total production time of the wax injection mold without coolant leakage during the cooling stage was only 62% that of the production time of the wax injection mold fabricated with high-density process parameters. A significant savings of up to 46% of the production cost of the injection mold was obtained.

scholarly journals Study on new hot stamping tool with low cost and high cooling efficiency

2021 ◽  
Vol 1157 (1) ◽  
pp. 012097
Author(s):  
S Peng ◽  
J Zhou ◽  
S Qian ◽  
M Zhang ◽  
J Liu ◽  
...  
Keyword(s):  
Low Cost ◽  
Hot Stamping ◽  
Cooling Efficiency

High-strength binary Ti–Fe bulk alloys with enhanced ductility

2004 ◽  
Vol 19 (12) ◽  
pp. 3600-3606 ◽  
Author(s):  
Dmitri V. Louzguine ◽  
Hidemi Kato ◽  
Larissa V. Louzguina ◽  
Akihisa Inoue
Keyword(s):  
Low Cost ◽  
Density Ratio ◽  
High Strength ◽  
Solid Solution Phase ◽  
Injection Mold ◽  
Alloying Element ◽  
X Ray ◽  
Mold Casting ◽  
Fe Alloys ◽  
Bulk Alloys

The structure of hypoeutectic, hypereutectic, and eutectic Ti–Fe alloys produced in the shape of arc-melted ingots was found to consist of the ordered Pm-3m TiFe and disordered BCC Im3m β–Ti solid solution phase. The dimensions of the ingots were about 25–40 mm in diameter and 10–15 mm in height, and their structure was studied by x-ray diffractometry and scanning electron microscopy. The rectangular parallelepiped-shaped samples 2.5 × 2.5 × 5 mm in size cut from the central part of the ingots exhibit a high strength of about 2000 MPa, except for Ti60Fe40, and a certain ductility. The relatively low density of Ti (4.5 Mg/m3) implies high strength/density ratio for the studied alloys. These alloys are characterized by the low cost of the alloying element Fe and, compared to most of the high-strength non-equilibrium materials, do not require additional injection mold casting or rapid solidification procedures.

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