Influence of the cutting direction angle on the tool wear behavior in face plunge grinding of PcBN

Denkena, Berend; Grove, Thilo; Müller-Cramm, Dominik; Krödel, Alexander

doi:10.1016/j.wear.2020.203325

Cited by 11 publications

(10 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The parameter variation of the conditioning process is performed ceteris paribus the rst test series (Table 1) and, in addition, the infeed of the conditioning tool per stroke a ed is varied as shown in Table 2. In the process, the time course of the power consumption of the grinding spindle is determined using the Tyrolit Toolscope in process measurement technology according to [13]. This data recorder enables the recording of the spindle power and position of the axes of the machine tool.…”

Section: Experimental Setup and Methodsmentioning

confidence: 99%

“…P''' c is the slope of a linear regression of P' c to V' w . As shown by [13], the speci c spindle power is highly correlated with the speci c cutting energy, which depends not only on the chip formation but also on sliding in a grinding process. Both, attening of the diamond grains as well as grain dulling and weld build-up, lead to an increased coe cient of friction between grinding tool and workpiece.…”

Section: Experimental Setup and Methodsmentioning

confidence: 99%

“…Consequently, the amount of rubbing increases until a thermal overload occurs. The mechanisms to describe the intensity of the dressing discussed in [13] can also be observed in plunge face grinding.…”

Section: In Uence Of In-process Conditioning On the Grinding Process (Test Series 2)mentioning

confidence: 99%

“…that the speci c cutting energy increases by e c = 500 J/mm 3 per V' w = 1 mm³ of ground PcBN. It can be stated that the energy consumption of the process and the tool wear increase signi cantly by increasing V' w [12,13]. To maintain the process capability of the grinding tool, it needs to be cleaned and sharpened.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimization of in-Process Conditioning Parameters During Face Plunge Grinding of PcBN

Denkena¹,

Krödel-Worbes²,

Müller-Cramm³

2021

Preprint

Self Cite

View full text Add to dashboard Cite

Polycrystalline cubic boron nitride (PcBN) is an extremely hard material. Machining of the material is performed by grinding with diamond tools. Due to its high hardness, the grinding tools underlie a severe microscopic and macroscopic tool wear. This wear leads to a short tool life and results in high effort in conditioning the abrasive layer. Contrary to the usual conditioning of diamond grinding wheels with diamond dressing tools, this study investigates a conditioning process based entirely on the use of white corundum cup rolls. These conditioning tools allow the in-process face plunge conditioning of vitrified bond diamond grinding tools. The circumferential speed of the conditioning tool and the average grain diameter of the corundum are identified as the main factors influencing the topography of the generated grinding layer. To describe the performance of the conditioning process, a specific conditioning removal rate Q’sd is derived. This parameter represents a cumulated variable that allows a comparison of different conditioning strategies. It is shown that an increase in Q'sd significantly counteracts microscopic wear on the abrasive layer. Therefore, optimized process parameters enable the process of in-process conditioning to significantly reduce the wear on the grinding tool without increasing the process time or the non-productive time.

show abstract

Section: Experimental Setup and Methodsmentioning

confidence: 99%

Section: Experimental Setup and Methodsmentioning

confidence: 99%

Section: In Uence Of In-process Conditioning On the Grinding Process (Test Series 2)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of in-Process Conditioning Parameters During Face Plunge Grinding of PcBN

Denkena¹,

Krödel-Worbes²,

Müller-Cramm³

2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Denkena et al reported the formation of B 2 O 3 at a higher laser uence using picosecond and femtosecond lasers on a polycrystalline cubic boron nitride (PcBN) surface, distinguishing it from thermal effects such as melting using a nanosecond laser [21]. Therefore, a low uence is recommended, and the number of pulses, pulse energy, and laser spot size should be controlled.…”

Section: Motivation For Pulse Laser Processingmentioning

confidence: 99%

Improvement in Sintered Tungsten Carbide Tool Surface Integrity Using Femtosecond Pulse Laser

Konda

Liu

Maegawa

et al. 2021

Preprint

View full text Add to dashboard Cite

In this paper, we propose a surface integrity technique referred to as pulse laser grinding (PLG). This method is a combination of laser ablation and averaging processes, such as grinding, and has two characteristic features. The first feature is that the irradiation area consists of a long-focus lens and a pulse laser with a Gaussian profile, and this method has a laser irradiation area equivalent to that of the grinding wheel. However, owing to the difference in the removal process of PLG and that of conventional grinding, the surface roughness after processing is expected to be different. The second feature is that the workpiece is placed at an approximately parallel angle between the laser axis and the work surface to undergo laser ablation on the surface. The characteristic piece placement restrains laser-specific problems such as debris and redeposition. This study targets sintered tungsten carbide (WC-Co), for which it is particularly difficult to form low-roughness surfaces. Binder removal followed by WC grain detachment caused by conventional grinding contributes to the increase in roughness and deterioration of corner sharpness. The experimental results of PLG with a sufficiently averaged surface of a WC-Co tool confirmed that the parallel roughness reached an arithmetical mean roughness (Ra) of 0.025 μm, and the perpendicular roughness reached Ra below 0.006 μm, in agreement with the aforementioned considerations.

show abstract

Model of Machining Error for the Circular External Plunge Grinding Taking into Account the Dynamic Features of Process

Almawash

Pereverzev

2022

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

Influence of the cutting direction angle on the tool wear behavior in face plunge grinding of PcBN

Cited by 11 publications

References 9 publications

Optimization of in-Process Conditioning Parameters During Face Plunge Grinding of PcBN

Optimization of in-Process Conditioning Parameters During Face Plunge Grinding of PcBN

Improvement in Sintered Tungsten Carbide Tool Surface Integrity Using Femtosecond Pulse Laser

Model of Machining Error for the Circular External Plunge Grinding Taking into Account the Dynamic Features of Process

Contact Info

Product

Resources

About