The Effect of Feed Rate and Cutting Speed to Surface Roughness

Abdullah, Ahmad Badri; Chia, L.Y.; Samad, Z.

doi:10.3923/ajsr.2008.12.21

Cited by 32 publications

(17 citation statements)

References 5 publications

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“…This trend is similar to that obtained for the WEFZ which indicated that the surface quality of shaped Gmelina arborea increased with increasing spindle speed. This implies that surface roughness decreases with increasing spindle speed as has been reported by Abdullah et al [24].…”

Section: Shaping Characteristics Of Gmelina Arboreasupporting

confidence: 74%

“…Table 3 which indicates the ANOVA of the effect of ecological zone, tree section, spindle speed and their interaction on the surface quality of the shaped specimens shows that at 5% level of significance, ecological zone and spindle speed had significant effect on the quality of the shaped surface. This result is supported by the outcome of a study by Abdullah et al [24], Addae-Mensah and Ayarkwa [11] and Davis [12], which indicated that surface quality increases with increasing spindle speed to a maximum of 15000 rpm.…”

Section: Shaping Characteristics Of Gmelina Arboreasupporting

confidence: 65%

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Sanding and Shaping Characteristics of Gmelina arborea Grown in Two Ecological Zones in Ghana

Mitchual

Owusu

Minkah

2019

JERR

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Poor machining of wood generates more residues which leads to low recovery in wood processing. Therefore, the availability of appropriate wood machining techniques would promote efficient utilization of logs. This study looked at the shaping and sanding properties of Gmelina arborea - a lesser-known species in Ghana - in order to promote its efficient utilization. Six trees from plantations at the Wet Evergreen and Dry Semi-Deciduous Forest Zones were extracted and processed into lumber using LT 15 horizontal wood-mizer. The average moisture content of samples just before the test was 14.57%. Specimens were prepared in accordance with ASTM D 143-83 and ASTM D 1666-87 (2004) for the sanding and shaping tests. The effects of tree location, grit size and spindle speed on sanding and shaping properties of Gmelina arborea wood were assessed using the visual approach. For the sanding test, grit size P80 was the best sandpaper to remove chipped and torn grain defects from the surfaces of Gmelina arborea lumber after planing. Spindle speed 10,000 rpm gave the best shaping output so it was recommended for shaping Gmelina arborea timber grown in Ghana. For the shaping operation, wood samples obtained from the Dry Semi-Deciduous Forest Zone had better surface quality than those obtained from the Wet Evergreen Forest Zone. A similar trend was obtained for the sanding test. The most common defects observed during grading of the shaped specimens were raised, chipped and fuzzy grains and those observed for the sanded specimen were fuzzy and scratchy defects. At 5% level of significance, tree location and spindle speed had significant effect on the surface quality of the shaped specimen.

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Section: Shaping Characteristics Of Gmelina Arboreasupporting

confidence: 74%

Section: Shaping Characteristics Of Gmelina Arboreasupporting

confidence: 65%

Sanding and Shaping Characteristics of Gmelina arborea Grown in Two Ecological Zones in Ghana

Mitchual

Owusu

Minkah

2019

JERR

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“…This finding is also strengthened by the report of Abdullah et. al [17] that highlighted the feed rate as the most influential parameter in giving the value of surface roughness of a workpiece. On the other hand, it was found that operation under low feed rate to achieve low surface roughness of workpiece is not necessarily needed at some point.…”

Section: Resultsmentioning

confidence: 99%

Study on the effects of nozzle distance to surface roughness of workpiece under minimum quantity lubricant (MQL) milling process

Fadzil

Ismail

Rosli

2018

JMMST

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Application of cutting oil during machining process has been the most important contributor for the development of manufacturing sectors. There are many types of machining technologies developed with cutting oil supply system such as minimum quantity lubricant (MQL). With very little supply of lubricant, it can lengthen the cutting tool life and surface roughness of workpiece. Although the low consumption of lubricant is favourable, study on the performance of MQL machining process must be strengthened enough since the high penetration ability of very little amount of lubricant oil is important. Many researches have been carried out since decades ago to study the MQL performance. However, investigation on the effects on nozzle position have not been treated in much detail. Here, this paper is aimed to investigate the effects of nozzle distance to surface roughness of workpiece under MQL milling process. Experimental approach was done mainly under different nozzle distance varied in horizontal direction from the cutting tool. Other than that, the effects of feed rate and spindle speed to the surface roughness were also investigated. As a result, surface roughness increases with increasing feed rate. At lower operation of spindle speed, surface roughness rapidly increases with increasing feed rate compared to higher operated spindle speed. Operation under high feed rate leads to a decreasing surface roughness with increasing spindle speed. Milling under high feed rate for all conditions of nozzle distance can still give a great surface roughness for a workpiece, only if the spindle speed is increased. Surface roughness decreases with increasing distance of nozzle to workpiece in horizontal direction.

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“…The surface profiles are simulated by considering the cutting tool path and tool position in each cutting cycle. Average surface roughness R a can be predicted through equation: [30]. Figure 9 illustrates the simulated surface profiles under varied feed rate.…”

Section: Surface Generation and Surface Roughnessmentioning

confidence: 99%

Investigation on the material removal and surface roughness in ultraprecision machining of Al/B4C/50p metal matrix composites

Niu

Cheng

2019

Int J Adv Manuf Technol

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Metal matrix composites (MMCs) are increasingly applied in various engineering industries because of their distinct physical and mechanical properties. While the precision machining of MMCs is less understood due to their complex microstructure and poor machinability, a comprehensive scientific understanding on their machining mechanics and the associated surface generation mechanisms is of great importance particularly for industrial scale applications of MMCs. This paper presents a simulation and experimental-based holistic investigation on cutting mechanics, material removal and surface roughness in ultraprecision machining of MMCs. B 4 C/Al2024 is selected as the targeted MMC material in this research. The thermal-mechanical-tribological integrated modelling and analysis are presented to investigate the effects of cutting speed, feed rate and depth of cut (DOC) on the material removal, chip formation mechanics and surface generation process. The simulation results indicate that the machined surface roughness in precision machining of particle reinforced MMCs can be reduced by increasing the cutting speed and decreasing the depth of cut. The surface flow waviness decreases, which contributes to a higher surface quality, while machining with a smaller feed rate. The well-designed machining trials are conducted under the same cutting conditions and process variables as those in simulations, which perform a good agreement with simulation results.

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The Effect of Feed Rate and Cutting Speed to Surface Roughness

Cited by 32 publications

References 5 publications

Sanding and Shaping Characteristics of Gmelina arborea Grown in Two Ecological Zones in Ghana

Sanding and Shaping Characteristics of Gmelina arborea Grown in Two Ecological Zones in Ghana

Study on the effects of nozzle distance to surface roughness of workpiece under minimum quantity lubricant (MQL) milling process

Investigation on the material removal and surface roughness in ultraprecision machining of Al/B4C/50p metal matrix composites

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