Analysis of Residual Stress States of Structured Surfaces Manufactured by High-Feed and Micromilling

Lucas, Henning; Denkena, Berend; Grove, Thilo; Krebs, Eugen; Kersting, Petra; Freiburg, Dennis; Biermann, Dirk

doi:10.3139/105.110265

Cited by 17 publications

(4 citation statements)

References 8 publications

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“…[15][16][17] These can be obtained, for example, by mechanical processes such as micromilling or ultrasonic cold forging. [18,19] Surface texturing can also be carried out by means of lasers. A distinction can be made for example between laser texturing (LT) by ablation and direct laser interference patterning (DLIP).…”

Section: Introductionmentioning

confidence: 99%

Low‐Temperature Physical Vapor Deposition TiAlCrSiN Coated High‐Speed Steel: Comparison Between Shot‐Peened and Polished Substrate Condition

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Low‐Temperature Physical Vapor Deposition TiAlCrSiN Coated High‐Speed Steel: Comparison Between Shot‐Peened and Polished Substrate Condition

et al. 2022

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“…The superposition of suitable residual stresses with occurring load stresses can delay a failure of functionally relevant tool areas due to material fatigue. The properties and residual stress states present in the component subsurface are essentially determined by the manufacturing processes used in the process chain [5].…”

Section: Introductionmentioning

confidence: 99%

Influence of dressing strategy on tool wear and performance behavior in grinding of forming tools with toric grinding pins

Denkena

Krödel-Worbes

Keitel

et al. 2021

Prod. Eng. Res. Devel.

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The performance of grinding tools in grinding processes and the resulting surface and subsurface properties depend on various factors. The condition of the grinding tool after dressing is one of these factors. However, the influence of the dressing process on the condition of the grinding tool depends on the selected process parameters and is difficult to predict. Therefore, this paper presents an approach to describe the influence of the dressing process on tool wear of toric grinding pins and the resulting subsurface modification. For this purpose, toric grinding pins with a vitrified bond were dressed with two different strategies and the wear and operational behavior were investigated when grinding AISI M3:2 tool steel with two different grinding strategies. In general, the investigations have shown that the dressing process influences the performance and wear behavior differently depending on the grinding strategy used. The degree of clogging is influenced by the geometric contact sizes. In the case of small engagement cross sections with simultaneously large contact lengths the thermal tool load is distributed over a small annular area of the tool and favors clogging. Crushing and additional transverse loading of the grains result in an almost clog-free tool surface. This also leads to a lower G-ratio. Crushing leads to an intensified decrease of the torus radii. The influence of the dressing strategy can also be observed in the induced residual stresses. Toric grinding pins dressed by crushing induce lower compressive residual stresses into the workpiece, which can be attributed to the self-sharpening effect. This effect reduces the mechanical and thermomechanical load of the workpiece during machining.

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“…It also affects the chip formation during the machining processit causes a lower width of the chip than the feed per tooth. This mechanism is known as "chip thinning" [3], [4]. To reach the correct feed per tooth, high enough feed rate is needed.…”

Section: Introductionmentioning

confidence: 99%

Comparison of High Feed Machining with Conventional Milling in Terms of Surface Quality and Productivity

Kuruc¹,

Vozar²,

Šimna³

et al. 2019

DAAAM Proceedings

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Many industrial corporations are trying to increase productivity. They were made many types of research focused on cost-effective productivity increasing. Researchers and engineers were created new machining strategies and advanced processes, which could be enhanced by modified geometry, advanced coatings and new cutting materials. One of the costeffective methods to increase productivity is High Feed Machining (HFM). This method does not require any special equipment, such as high-speed spindle. Moreover, it does not require any special conditions neither. Due to the fast rapid traverse of many modern machine tools, High Feed Machining can be performed on most of them. This article compares machining of the reference steel materials -C45 by conventional milling and High Feed Machining. The experiment is based on the creating of some simple shapes, such as vertical and horizontal surfaces, notches, cylinders, etc. There were measured several surface roughness parameters. Results of the experiment could be applied to determine what advantages High Feed Machining brings and when it is advantageous.

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Analysis of Residual Stress States of Structured Surfaces Manufactured by High-Feed and Micromilling

Cited by 17 publications

References 8 publications

Low‐Temperature Physical Vapor Deposition TiAlCrSiN Coated High‐Speed Steel: Comparison Between Shot‐Peened and Polished Substrate Condition

Low‐Temperature Physical Vapor Deposition TiAlCrSiN Coated High‐Speed Steel: Comparison Between Shot‐Peened and Polished Substrate Condition

Influence of dressing strategy on tool wear and performance behavior in grinding of forming tools with toric grinding pins

Comparison of High Feed Machining with Conventional Milling in Terms of Surface Quality and Productivity

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