2019
DOI: 10.1007/s40430-019-1930-5
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Evaluation of surface and sub-surface integrities of a mold steel under different grinding conditions

Abstract: In a context where there is a continuous search for more environmentally friendly machining processes (for example, the implementation of the minimum quantity of lubrication-MQL-cooling-lubrication technique) and the constant concern with the high heat generation during the grinding process, there is still a lack of information about grinding of steel for molds and dies. Thus, the present work sought to evaluate the performance of tangential surface grinding of a steel for plastic injection molds, testing by t… Show more

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Cited by 10 publications
(3 citation statements)
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“…As shown in Figure 2, the white dots present in the microstructure of SAE 52100 steel represent the carbides that compose this material. The selection of the cutting parameters occurred taking into account the limitations of the machine tool, as well as other grinding research that was carried out on a machine tool similar to that used in the experimental tests of this current work, the primary references being the studies developed by Paiva et al [21], Guimarães et al [22], and Hübner et al [23]. Due to the constant rotation speed of the machine tool (2400 rpm), and considering the external diameter of the grinding wheel, the cutting speed was kept constant and equal to 37 m/s.…”
Section: Methodsmentioning
confidence: 99%
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“…As shown in Figure 2, the white dots present in the microstructure of SAE 52100 steel represent the carbides that compose this material. The selection of the cutting parameters occurred taking into account the limitations of the machine tool, as well as other grinding research that was carried out on a machine tool similar to that used in the experimental tests of this current work, the primary references being the studies developed by Paiva et al [21], Guimarães et al [22], and Hübner et al [23]. Due to the constant rotation speed of the machine tool (2400 rpm), and considering the external diameter of the grinding wheel, the cutting speed was kept constant and equal to 37 m/s.…”
Section: Methodsmentioning
confidence: 99%
“…Thus, the values of workspeed of 3 and 7 m/min were those more representatives for detecting variation in surface roughness values, among other variables. Guimarães et al [22] carried out experimental work on grinding of a mold and die steel grade (44.5 HRC) with two different grinding wheel materials (designations AA60K6V and 39C60KVK) and tested different radial depth of cut values (20, 40, and 60 µm) and workspeed values up to 10 m/min. They found that these values were suitable to detect variations in surface roughness, microhardness below the machined surface, and residual stresses.…”
Section: Methodsmentioning
confidence: 99%
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