scholarly journals Tool Steels in Die-Casting Utilization and Increased Mold Life

2015 ◽  
Vol 7 (1) ◽  
pp. 286071 ◽  
Author(s):  
Sepanta Naimi ◽  
Seyedeh Maryam Hosseini
Keyword(s):  
Die Casting ◽  
Tool Steels ◽  
Mold Life

scholarly journals NEW COMPOSITIONS OF TOOL STEELS FOR COLD AND HOT FORMING AND THEIR HARDENING CAPABILITIES

2018 ◽  
pp. 119-123
Author(s):  
V. N. Fedulov
Keyword(s):  
Wear Resistance ◽  
Copper Alloys ◽  
Die Casting ◽  
Cutting Tools ◽  
Hot Forming ◽  
Tool Steels ◽  
Operational Life ◽  
Selection Of

New compositions of tool steels of increased wear resistance for manufacturing tools of various purposes are considered. The results of this work can be used in the manufacture of cold and hot forming molds and working parts of die casting molds of aluminum and copper alloys, as well as in the manufacture of cutting tools for woodworking and even for plastics molding. In every case you selection of the steels depends on the purpose of use and the required operational life of the tool.

ALMOLD 20

Alloy Digest ◽  
1975 ◽  
Vol 24 (10) ◽  
Keyword(s):  
Physical Properties ◽  
Surface Treatment ◽  
Carbon Content ◽  
Tool Steel ◽  
Die Casting ◽  
Heat Treating ◽  
Tool Steels ◽  
High Quality ◽  
Medium Carbon ◽  
Quality Tool

Abstract ALMOLD 20 is a chromium-molybdenum tool steel of medium-carbon content. It was designed especially for zinc die casting dies and plastic molds. It is produced to high-quality tool-steels standards to permit a high luster to be achieved on polished die cavity surfaces. This datasheet provides information on composition, physical properties, and hardness. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-292. Producer or source: Allegheny Ludlum Corporation.

Energy-based approach to thermal fatigue life of tool steels for die casting dies

2016 ◽  
Vol 92 ◽  
pp. 166-178 ◽  
Author(s):  
Changrong Chen ◽  
Yan Wang ◽  
Hengan Ou ◽  
Yueh-Jaw Lin
Keyword(s):  
Fatigue Life ◽  
Thermal Fatigue ◽  
Die Casting ◽  
Tool Steels ◽  
Thermal Fatigue Life

scholarly journals Effect of Shielding Gases on the Wire Arc Additive Manufacturability of 5 Cr – 4 Mo Tool Steel for Die Casting Mold Making

2020 ◽  
Vol 58 (12) ◽  
pp. 852-862
Author(s):  
Jae-Deuk Kim ◽  
Jae Won Kim ◽  
Joo Yong Cheon ◽  
Yang-Do Kim ◽  
Changwook Ji
Keyword(s):  
Tool Steel ◽  
Die Casting ◽  
High Potential ◽  
Shielding Gases ◽  
Delivery Time ◽  
Shielding Gas ◽  
Tool Steels ◽  
Material Loss ◽  
The Wire ◽  
Wire Arc Additive Manufacturing

Generally, molds are fabricated by the machining of massive billets of tool steels, such as AISI4140 or H13, but it has drawbacks, such as a large material loss and long-delivery time. The Wire-Arc Additive Manufacturing (WAAM) process could be an alternative fabrication method. It has the advantages of less material loss, short-delivery time, and the chance to make a reinforced mold using dissimilar materials. 5 Cr – 4 Mo steel wire has high potential to produce molds via the WAAM process. This is a commercial tool steel solid wire initially designed for the repair and modification of tools and molds that has superior hot wear resistance and toughness. However, no study has examined the WAAM of tool steels, even though it has high potential and advantages. Shielding gas has a significant effect on the performance of the WAAM process, which is based on gas metal arc welding (GMAW). Argon (an inert gas) and carbon dioxide (a reactive gas) are generally used for the GMAW of steel alloys, and they are frequently used as mixed gases at various ratios. Shielding gases have a significant influence on the arc stability, weld quality, and formation of weld defects. Therefore, using a proper shielding gas for the material and process is important to sound WAAM performance. This paper discusses the effect of the shielding gas on the additive manufacturability of tool steel, as a first step for the WAAM of die casting molds. The experiments were conducted with two different shielding gases, M21 (Ar + 18% CO2) and C1 (100% CO2). The use of C1 showed neither surface contamination nor internal defects, and resulted in a larger amount of deposition than the M21.

Tempering Resistance of a New Type of Tool Steels Used in Magnesium Die Casting Machine

2010 ◽  
Vol 97-101 ◽  
pp. 838-842
Author(s):  
Yan Qing Wang ◽  
Xin Min Huang ◽  
Guang Hua Yan ◽  
Xing Guo Qin ◽  
Ming Yang ◽  
...  
Keyword(s):  
Die Casting ◽  
Casting Machine ◽  
Tool Steels ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
New Type ◽  
Double Tempering ◽  
Grain Surface ◽  
Tempering Resistance ◽  
Magnesium Die Casting

The tempering resistance in double tempering of a new type of tool steels used in magnesium die casting machine quenched at 1080°C, 1120°C and 1150°C respectively was investigated. 4 hours of first tempering and double tempering at 600°C, 630°C, 660°C, 690°C and 720°C are applied. The minimum hardness value is 53.4HRC quenched at 1150°C and then tempered. The decomposition of tempered martensite lath was retarded after adding a number of alloying elements such as Cr, Co, W, Mo, V, according to observations by transmission electron microscopy. It also shows that the fine dispersion secondary carbide precipitates along the martensite grain surface and grain boundary. The use of X-ray diffraction has revealed that secondary carbides precipitates takes the form of M6C carbide and the retained austenite has transformed to martensite completely quenching at 1150°C. These microstructures would lead to the better tempering resistance.

scholarly journals Development of HPDC Advanced Dies by Casting with Reinforced Tool Steels

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
I. Vicario ◽  
J. K. Idoiaga ◽  
E. Arratibel ◽  
I. Erauskin ◽  
L. M. Plaza ◽  
...  
Keyword(s):  
High Pressure ◽  
Electrical Discharge ◽  
High Speed ◽  
Electrical Discharge Machining ◽  
Die Casting ◽  
Tool Steels ◽  
Average Life ◽  
High Pressure Die Casting ◽  
Near Net Shape ◽  
Pressure Die Casting

High pressure die casting (HPDC) dies are nowadays manufactured with high quality forged steels. Cavities are made by electrical discharge machining (EDM) or by high speed milling. The average life of an aluminium HPDC die is about 125.000 injections. Refrigeration circuits have simple configurations, because they are produced by drilling the die with straight holes. They are limitations in the distances and diameters of holes. Sensors are placed where the geometry of the die permits an easy machining. In order to obtain complex figures, several rapid prototyping methods have been developed. However, there is a limitation in the life of the dies produced by this technique, from several parts to thousands. A new method to obtain semifinished high pressure die casting dies in a steel of higher mechanical properties and with the refrigeration circuits and sensors embedded into it is described in this paper. The method consists in producing a molten steel alloy with micro-nano-special ceramic particles inserted in it and casting the composite material in sand moulds of the desired geometry. The resultant solidified near-net shape die with the cooling tubes and sensors embedded into it. A use-life and a productivity about 50% and 10% higher are obtained.

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