Burr Minimization Strategies in Machining Operations

Biermann, Dirk; Heilmann, Markus

doi:10.1007/978-3-642-00568-8_2

Cited by 27 publications

(13 citation statements)

References 3 publications

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“…Large entrance burrs produced with worn tools are primarily due to different kinematic engagement rather than back cutting. Biermann [24] investigated the principle coherences between burr formation and notch wear separated into three steps. The individual process steps are illustrated in Fig.…”

Section: Resultsmentioning

confidence: 99%

Burrs—Analysis, control and removal

et al. 2009

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Section: Resultsmentioning

confidence: 99%

Burrs—Analysis, control and removal

et al. 2009

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“…Under this cutting condition, the heat generated is higher, and consequently, the wear rates are also higher. However, the harder S41426 super martensitic stainless steel produced a much shorter tool life than the S41000 martensitic stainless steel (2.5 vs. 16 min) [14]. By observing these two figures, it is clear that the predominant wear mechanisms during the machining of the martensitic stainless steel were diffusion with attrition appearing at the cutting edge, while attrition prevailed during the machining of the super martensitic stainless steel.…”

Section: Martensitic Stainless Steelmentioning

confidence: 88%

“…Due to the high ductility and workhardening rate of the material, a very hard burr was formed at the end of the contact between the tool and the workpiece (end of the depth of cut). This hard burr produced a furrowing effect on the tool in that region, as described by [14]. As the cutting progressed, the furrowing effect removed the coating layer from the tool, forming a furrow in the tool at that point.…”

Section: Super Duplex Stainless Steelmentioning

confidence: 99%

Tool wear mechanisms in the machining of steels and stainless steels

Diniz

Machado

Corrêa

2016

Int J Adv Manuf Technol

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In machining processes, tool performance is measured by the tool life, which is determined by the tool wear rate. This rate is strongly dependent on the tool wear mechanisms that occur in a specific process. Moreover, determining the wear mechanism is a fundamental task for the development of cutting tools. However, the tool wear mechanism depends on factors such as the workpiece material, the cutting operation, the properties of the tool material, the cutting conditions, and the cooling/lubrication system. This study aims to contribute to the understanding of the mechanisms that cause wear in tools. First, it presents a review of the literature describing the wear mechanisms that are present in metal cutting. Then, an analysis of the tool wear mechanisms during the machining of steels and stainless steels using different cutting tools is presented based on a review of studies performed mostly by research groups at the University of Campinas and Federal University of Uberlandia, Brazil. This analysis was performed using pictures of the worn regions taken in a scanning electronic microscope (SEM) with energydispersive spectroscopy (EDS) device which are fundamental to better understand the causes of tool wear. The major findings of this work were as follows: (i) Attrition is a very important wear mechanism in the machining of ductile materials such as steels and stainless steels; (ii) when a steel alloy with high ductility and work hardening rate is machined, a hard burr occurs in the end of the depth of cut and the burrfurrowing effect on the tool coating stimulates the attrition mechanism; and (iii) other wear mechanisms like abrasion and diffusion also appear in the machining of steels and stainless steels.

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“…Luo et al [11] explored burr formation mechanism in aluminium alloy during slot milling in the direction of feed to notice an increase in height of exit burr with increased exit angle, and formation of large burr at an exit angle of 90 . Biermann and Heilmann [12] worked on enhancing the quality of face milled aluminium alloy workpiece. They opined that use of cutting fluid with suitable machining process might result in avoidance of deburring.…”

Section: Introductionmentioning

confidence: 99%

On Reduction of Formation of Burr in Face Milling of 45C8 Steels

Saha

Das

2013

Materials and Manufacturing Processes

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Burr is observed on a machined job attached to its edge. Problem is experienced due to the presence of burr in the production line affecting product quality and causing possible injury to an operator, and hence, a strategy for prevention or minimization of burr formation needs to be adopted. Usually, deburring is done to eliminate burrs in industry incurring additional cost. To tackle this problem, many investigations were made in the past on formation of burr and its minimization. The aim of the present work is to find out the condition to suppress burr formation effectively during face milling of 45C8 steel specimens, which are widely used in Indian Railways. First, in-plane exit angle is varied, and it shows that an in-plane exit angle of 30 reduces burr height remarkably. Next, with the provision of 15 exit edge bevel, it is noted that burr size can be reduced effectively to a negligible value by keeping an in-plane exit angle of 60 .

show abstract

Burr Minimization Strategies in Machining Operations

Cited by 27 publications

References 3 publications

Burrs—Analysis, control and removal

Burrs—Analysis, control and removal

Tool wear mechanisms in the machining of steels and stainless steels

On Reduction of Formation of Burr in Face Milling of 45C8 Steels

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