Experimental Investigation of Microcutting Mechanisms in Granite Grinding

Tanovic, Lj.; Bojanic, P.; Puzović, Radovan; Milutinović, Milan

doi:10.1115/1.4003521

Cited by 8 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The distance of the tool tip from the axis of rotation was d t =161.44 mm for the diamond tip r=0.2 mm, and d t =160.6 mm for the diamond tip r=0.15 mm. The cutting speed (v s ) at which micro-cutting was performed was 15 and 25 m s −1 , which was adopted on the basis of recommendations according to [48,49]. In order to achieve the desired cutting speed, the RPM of the tool was = for the tool with diamond tip r=0.15 mm.…”

Section: Methodsmentioning

confidence: 99%

Experimental investigation of the tool radius and micro-cutting speed influence on micro-cutting mechanisms for marble based material

Pjević

Popović

Tanović

2021

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

In this paper, a detailed experimental analysis of the effect of tool tip radius and cutting speed on the proposed mechanism of micro-cutting Plavi tok marble was performed. Although Plavi tok marble belongs to extremely brittle materials, experiments have shown that it can be processed in ductile mode (plastic deformation mode), i.e. without the presence of brittle fracturing of the material. Moreover, it has been established that the range of plastic deformation zone is a function of the tool tip radius and the cutting speed. The diamond tools used during the experiments had tip radius values of r = 0.15 and r = 0.2 mm, while cutting speeds were 15 and 25 m s−1. When using tools with higher tip radius values, with increasing cutting speed, the critical penetration depth (ductile-brittle transition) increased from 8.8 to 9.3 μm. On the other hand, tools with lower radius value led to a reduction of the plastic deformation zone range. This declining trend of plastic deformation zone continued during increased cutting speed, with critical penetration depths of 8.6 and 8.3 μm for cutting speeds of 15 and 25 m s−1, respectively. The intensity of lateral/radial destruction in the brittle fracturing mode was also directly dependent on the processing conditions. The reduction was achieved by using tools with a lower value of the tip radius while processing at lower speeds. In this paper, the identification of the components of the cutting force was carried out, whose intensities indicate the occurrence of the brittle destruction within the material.

show abstract

Section: Methodsmentioning

confidence: 99%

Experimental investigation of the tool radius and micro-cutting speed influence on micro-cutting mechanisms for marble based material

Pjević

Popović

Tanović

2021

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

show abstract

“…In the context of the 600 grit size, only the spindle speed (N) exhibited a substantial impact on F xy , as indicated by Equation (10), which boasts an R 2 of 94% and an adjusted R 2 of 93%. Conversely, in the case of F z , both spindle speed (N) and feed rate (V f ) contributed significantly, culminating in an empirical model outlined in Equation (11).…”

Section: Analysis Of Variance For Cutting Forcesmentioning

confidence: 98%

“…Figure 15 presents the surface responses of cutting forces when edge finishing with grit 150 tools in wet conditions, according to Equations (4), ( 5), (8), and ( 9), but considering quadratic terms. Similarly, Figure 16 presents the surface responses of cutting forces when edge finishing with grit 600 tools in wet conditions, according to Equations ( 6), ( 7), (10), and (11) and including quadratic terms.…”

Section: Analysis Of Variance For Cutting Forcesmentioning

confidence: 99%

“…Huang and Xu (2003b) [9] found that the feed rates did not affect the gloss readings when grinding granites; the gloss readings appeared to be more dependent on tool rotational speed and tool workpiece contact pressure; thus, this is related to the workpiece material's composition and hardness. According to Tanovic et al (2011) [10], granite machining involves both brittle fracture and plastic deformation. Fragile fracture indicates that there are two mechanisms of crack propagation: medial cracks and lateral/radial cracks to chip formation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Investigation on the Effects of Tool Geometry and Cutting Conditions on Machining Behavior during Edge Finishing of Granite Using Concave and Chamfered Profiling Tools

Mateur,

Songmene,

Kouam

2024

Micromachines

View full text Add to dashboard Cite

Granite edge finishing through grinding is a common process in the granite processing industry, crucial for achieving the final desired shape and edge quality of products. This study focuses on the granite industry, specifically delving into the significance of grinding and polishing for improving aesthetics and extending material longevity. The experimental design entails a comprehensive factorial experiment plan involving two workpiece materials (white and black granite samples) and two cutting tool edge shapes (chamfer and concave), each with two grit sizes: G150 and G600. The cutting conditions varied and consisted of variations in spindle speeds (1500, 2500, 3500 rpm), feed rates (500, 1000, 1500 mm/min), and lubrication modes (wet/dry). The results uncover intricate relationships among these parameters and part quality, underscoring the pivotal role of tool geometry in achieving superior surface finishes and in controlling the cutting forces. These findings contribute to a nuanced understanding of the dynamic interplay between tool characteristics, material properties, and machining conditions within the granite industry.

show abstract

“…As a result of this research, the distinct stages of the process of material removal became identifiable. Tanovic et al [12] researched the features and optimal parameters of tools with diamond segments during micro machining processes. In the case of a mining drill system, Jiang et al analysed pressure values applied during machining, and the effects of the intensity of cooling on cracks and breaks in natural stones [13].…”

Section: Literature Reviewmentioning

confidence: 99%

Researching the Effects of Feedrate and Diamond Grain Size on Edge Chipping of Milled Granites

Gyurika

2018

Teh. vjesn.

View full text Add to dashboard Cite

Natural stones are common and preferred materials in the construction industry and in manufacturing technology, too. In every field of their application, it is outstandingly important that chipping caused by machining be minimised on the products' edges. The primary aim of this research was to examine chippings and damages at the edges of sample granite surfaces. The chippings and damages under scrutiny in this paper were caused by milling machining, and such machining was executed using different feedrate speeds and diverse diamond grain sizes. Within the scope of this paper, the results of the experiments were used to generate recommendations concerning the minimization of edge chipping. The results of the study show that the diamond grains' average size in the segments of the milling tools and the reduction of the applied feedrate obviously influences the magnitude of the rate of average edge chipping.

show abstract

Experimental Investigation of Microcutting Mechanisms in Granite Grinding

Cited by 8 publications

References 21 publications

Experimental investigation of the tool radius and micro-cutting speed influence on micro-cutting mechanisms for marble based material

Experimental investigation of the tool radius and micro-cutting speed influence on micro-cutting mechanisms for marble based material

Experimental Investigation on the Effects of Tool Geometry and Cutting Conditions on Machining Behavior during Edge Finishing of Granite Using Concave and Chamfered Profiling Tools

Researching the Effects of Feedrate and Diamond Grain Size on Edge Chipping of Milled Granites

Contact Info

Product

Resources

About