The Phonomenon of Material Side Flow During Finish Turning of EN X153CrMoV12 Hardened Steel with Tools Based on Polycrystalline Cubic Boron Nitride

Ociepa, Michał; Jenek, M.; Feldshtein, E.; Leksycki, Kamil

doi:10.3103/s1063457619040063

Cited by 4 publications

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“…The uncoated T1 tools, characterized by a higher coefficient of friction than the coated ones, generate a higher temperature in the cutting zone [38]. This, in turn, might have resulted in the plastification of the processed material, leading to the phenomenon of material side flow as well as frequent chip sticking on the processed surface [5], which caused the abnormal increase of roughness parameters (Figure 3). These phenomena did not occur on surfaces machined with coated blades, an example of which is shown in Figure 5c,d.…”

Section: Resultsmentioning

confidence: 99%

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The Geometric Surface Structure of EN X153CrMoV12 Tool Steel after Finish Turning Using PCBN Cutting Tools

2021

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The article presents the results of studying the effects of coated (TiN, TiAlN) and uncoated polycrystalline cubic boron nitride (PCBN) machining blades on the key geometric structure parameters of the surface of hardened and tempered EN X153CrMoV12 steel after finish turning. A comparative analysis of the use of coated and coated cutting tools in finish turning of hardened steels was made. Tool materials based on polycrystalline cubic boron nitride PCBN (High-CBN; Low-CBN) have been described and characterized. The advantages of using TiN and TiAlN-coated cutting tools compared to uncoated were demonstrated. The lowest influence of the feed on the values of all tested roughness parameters was noted for surfaces treated with TiN- and TiAlN-coated tools (both with 50 vol.% of CBN). For uncoated tools (60 vol.% of CBN) for feeds f = 0.2 and 0.3 mm/rev., the highest values of Ra and Rz roughness parameters were found. Moreover, the lack of protective coating contributed to the occurrence of intense adhesive wear on the flank surface, which was also in the range of the feed values f = 0.2 and 0.3 mm/rev. The analysis of material surface after treatment with the uncoated tools with the feed f = 0.2 mm/rev. showed the occurrence of the phenomenon of lateral material flow and numerous chip deflections.

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Section: Resultsmentioning

confidence: 99%

“…The machining parameters used are significantly reduced due to higher cutting forces compared to traditional turning. Turning of "hard" materials is most often performed without using cooling and lubricating fluids, which results in generated temperatures exceeding 1000 • C in the cutting zone [5].…”

Section: Introductionmentioning

confidence: 99%