Increasing the lifespan of high-pressure die cast molds subjected to severe wear

Nunes, Vitor A.; Silva, Francisco; Andrade, Mauro; Alexandre, Ricardo; Baptista, A. M.

doi:10.1016/j.surfcoat.2017.05.098

Cited by 58 publications

(44 citation statements)

References 39 publications

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“…"Load-Depth" curves were interpreted, and computed the revised (E ) Young's modulus as 482.72 ± 23.84 GPa. These values are in line with the values obtained in other works [39]. Table 3 presents the chemical composition, as well as the physical and mechanical properties of the PH7930 substrate, provided by the vendor PALBIT.…”

Section: Substrate Coating Thicknesssupporting

confidence: 87%

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Machining GX2CrNiMoN26-7-4 DSS Alloy: Wear Analysis of TiAlN and TiCN/Al2O3/TiN Coated Carbide Tools Behavior in Rough End Milling Operations

et al. 2019

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In the last decade, it has been common to observe a competition between coatings achieved via physical vapor deposition (PVD) and chemical vapor deposition (CVD) techniques on cutting tools used in machining processes. The tool’s substrate material can immediately condition the coating process selection. However, there are also materials capabe of adapting to any of the coating processes. Hence, the capabilities demonstrated by a given coating when created with one technique or another are usually different due to the intrinsic characteristics of each coating process, such as temperature and stress levels. In this work, to study the machining behavior of a super duplex stainless steel, PVD- and CVD-coated tungsten carbide inserts with different coatings were used in order to identify the wear mechanisms that affect each of the coatings and the workpiece’s surface quality, evaluated through different roughness parameters. The vibration level produced throughout the various tests was also registered in an attempt to associate the type of coating or insert failure with the level of vibrations generated in the CNC (Computer Numeric Control) machining spindle. This allowed us to conclude that the tools coated with TiAlN via PVD showed better wear behavior, as well as creating workpiece surfaces with less roughness. Thus, it was clear that this coating presents strong advantages in the machining of the super duplex stainless steel chosen for this work, being an innovative work due to the combination of materials used and the approach in terms of vibration analysis applied to milling.

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Section: Substrate Coating Thicknesssupporting

confidence: 87%

“…using a normal load of 50 mN and dwell time of 30 seconds, avoiding by this way creep phenomenon. The selected load took into account that the depth of penetration cannot exceed 10% of the coating thickness, as referred in [39]. Indeed, the maximum depth registered does not surpassed 8% of the coatings' thickness.…”

Section: Substrate Coating Thicknessmentioning

confidence: 99%

Machining GX2CrNiMoN26-7-4 DSS Alloy: Wear Analysis of TiAlN and TiCN/Al2O3/TiN Coated Carbide Tools Behavior in Rough End Milling Operations

et al. 2019

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“…The press is used, among other things, to determine the correctness of geometrical parameters by an imprint of the plastic mass, to check the leak tightness under the conditions of the applied pressure and temperature during the operation of the mold after installation on the casting machine. During spotting, you can also easily check material surplus on molds and slides after processing, which to a large extent allows to optimize parameters of the CNC machining or the electrical discharge machining (EDM) (Schmidt and Schauer, 1994;Nunes et al, 2017;Sarmiento-Meridaet al, 2018, Zorawski et al, 2008. MoldmakerAnother important advantage is the possibility to study the impact of the size of surplus components of the mold's prototype on the moving of movable parts against each other and to study the effect of the mold's temperature and the assumed pressure of the liquid material injection on the tightness of the mold's prototype.…”

Section: Technological Problemmentioning

confidence: 99%

Improving Production Efficiency of Large Size Molds as a Result of Innovative Quality Control Process

Skowron-Grabowska

Jasiński

Jasińska

et al. 2018

Multidisciplinary Aspects of Production Engineering

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One of the basic elements of the technological chain of manufacturing products in the European Union is the metal processing sector, which is one of the dynamically developing industries. An important department in the aforementioned sector is the production of unconventional, large-size injection molds and tools weighing more than 10 tons. Very often large-size components in the production process must be precisely checked and subjected to appropriate corrective actions at the quality control stage, in order to avoid non-compliance with customer requirements, and thus increased costs related to reducing production efficiency, logistics of large-size elements from the customer back to the manufacturer of the mold in order to correct it, and also complaints of the final product connected with dimensional changes and surface defects in the casting process. This paper presents a case study of the implementation of the innovative quality control process to verify the production of large-size molds for aluminum high pressure casting with the spotting press machine, allowing for product quality improvement. The introduction of the innovative press for spotting molds to the quality control stage also leads to the improvement of production efficiency, which was confirmed by the results of an increase of the OEE coefficient in the entire production process. In addition, a significant reduction in the production time of products was achieved, and the cost of the mold production process was lowered.

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“…TiN coatings are extensively employed in various industries to increase the wear resistance and lifetime of machine component [1,2]. They have limitation of preventing O 2 condensation reaction.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis and Comparative Performance of Ti-Based Coatings on Hard-Chrome Plated Stainless Steel

Khanchaiyaphum

Saikaew

Surinphong³

2020

Teh. vjesn.

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Experimental analysis was performed to evaluate the performances of hard-chrome plated stainless steel and TiAlSiN and TiCrAlSiN hard coatings deposited on cast stainless steel based on wear experimental data. The wear tests were carried out using a reciprocating wear tester modified from ASTM G133-05.The analysis of variance and other statistical tools were used to explore the influences of coating type, applied load and workpiece surface roughness on the average weight loss values of the workpiece materials. The results showed that coating type, applied load, and workpiece surface roughness and the interactions between coating type and applied load as well as between coating type and workpiece surface roughness were statistically significant at the level of significance of 0.05. Furthermore, the TiCrAlSiN coating had the highest wear resistance followed by the TiAlSiN and the hard-chrome plated stainless steel, respectively.

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Increasing the lifespan of high-pressure die cast molds subjected to severe wear

Cited by 58 publications

References 39 publications

Machining GX2CrNiMoN26-7-4 DSS Alloy: Wear Analysis of TiAlN and TiCN/Al2O3/TiN Coated Carbide Tools Behavior in Rough End Milling Operations

Machining GX2CrNiMoN26-7-4 DSS Alloy: Wear Analysis of TiAlN and TiCN/Al2O3/TiN Coated Carbide Tools Behavior in Rough End Milling Operations

Improving Production Efficiency of Large Size Molds as a Result of Innovative Quality Control Process

Experimental Analysis and Comparative Performance of Ti-Based Coatings on Hard-Chrome Plated Stainless Steel

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