Investigation of the effect of drilling conditions on the twist drill temperature during step-by-step and continuous dry drilling

Bagci, Eyup; Özçelik, Babür

doi:10.1016/j.matdes.2004.11.018

Cited by 52 publications

(31 citation statements)

References 12 publications

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“…The drilling strategy employed is an interval drilling approach, which is often used in industrial processes for reduced heat and tool wear. 20,21 Interval drilling in this application provides time for the bone to cool between periods of heat generation. The interval drilling trajectory is defined by two components: depth of each interval and time between intervals.…”

Section: Methodsmentioning

confidence: 99%

Pre-operative Screening and Manual Drilling Strategies to Reduce the Risk of Thermal Injury During Minimally Invasive Cochlear Implantation Surgery

et al. 2017

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This article presents the development and experimental validation of a methodology to reduce the risk of thermal injury to the facial nerve during minimally invasive cochlear implantation surgery. The first step in this methodology is a pre-operative screening process, in which medical imaging is used to identify those patients that present a significant risk of developing high temperatures at the facial nerve during the drilling phase of the procedure. Such a risk is calculated based on the density of the bone along the drilling path and the thermal conductance between the drilling path and the nerve, and provides a criterion to exclude high-risk patients from receiving the minimally invasive procedure. The second component of the methodology is a drilling strategy for manually-guided drilling near the facial nerve. The strategy utilizes interval drilling and mechanical constraints to enable better control over the procedure and the resulting generation of heat. The approach is tested in fresh cadaver temporal bones using a thermal camera to monitor temperature near the facial nerve. Results indicate that pre-operative screening may successfully exclude high-risk patients and that the proposed drilling strategy enables safe drilling for low-to-moderate risk patients.

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Section: Methodsmentioning

confidence: 99%

Pre-operative Screening and Manual Drilling Strategies to Reduce the Risk of Thermal Injury During Minimally Invasive Cochlear Implantation Surgery

et al. 2017

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“…Comparatively less temperature in cutting zone 11 Low temperature generation in reaming process Figure 16(a) shows a detailed analysis of the power signal for the drilling operation to make hole. It shows that the idle standby level of the machine was between 380 and 400 W. Power consumption of machine rapidly increased to 1917.6 W for spindle activation.…”

Section: Energy Consumptionmentioning

confidence: 99%

Surface roughness and energy consumption analysis of conventional and peck drilling approaches

Pervaiz

Deiab

2014

Proceedings of the Institution of Mechanical Engineers, Part B:

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Drilling operations are one of the most commonly used operations in the automotive and aerospace sectors. The aim of this article is to compare peck drilling as an alternate approach to the conventional drilling and reaming operations; in terms of energy consumption and machined surface roughness to facilitate the selection of the optimum finishing processes with respect to machined surface quality and energy consumption. The experiments were performed under dry conditions on an Al-6061 using a high-speed steel reamer and drills of 12 mm diameter. The results revealed that peck drilling refined the surface finish of previously drilled steps in most of the cases. The outcome of the energy consumption analysis was used to evaluate the amount of CO 2 emissions. The study suggested that surface roughness refinement in peck drilling was better than conventional drilling but was not as efficient as the reaming process. Peck drilling generated surfaces with a roughness value between those of drilling and reaming operations. Less tool wear was observed under peck drilling process when compared with conventional drilling. The investigation also revealed that CO 2 emissions produced under peck drilling approach were slightly higher than for combined drilling and reaming approach.

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“…During the drilling process, the most important factor affecting the cutting tool performance and workpiece properties is cutting temperature that emerges between drill bit and chip [2]. The cutting temperature directly influences hole characteristics such as diameter, perpendicularity, and cylindricity, as well as surface roughness and tool wear [3].…”

Section: Introductionmentioning

confidence: 99%

An experimental study of cutting fluid on drilling AISI 1040 steel

Alim

Uddin

Islam

2019

Journal of Mechanical and Energy Engineering

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This experimental study investigated the effects of a conventional cutting fluid during drilling cylindrical holes on workpiece materials made of the AISI 1040 steel. Drilling responses were compared between dry and wet (in presence of the cutting fluid) cutting conditions with respect to drilling force, roundness deviation and taper of the hole, and chip morphology. High production machining and drilling with high cutting speed, feed, and depth of cut were found to be inherently associated with the generation of a large amount of heat and high cutting temperature. In a dry condition such high cutting temperature not only reduces dimensional accuracy and tool life but also impairs the roundness deviation and taper of the hole. The use of a conventional cutting fluid, in such a situation, was very effective to reduce the cutting temperature. In a dry cutting condition, numerous tool-wears were found on the drill bits. Drilling in such a dry condition seriously affects roundness of the hole, and chip shape and color. Contrastingly, use of a traditional cutting fluid reduced temperature as well as improved roundness and taper of the hole. It also acted as a lubricate at the tool tip-work surface interface. Overall, the conventional cutting fluid enhanced the quality of the machine work and potentially can increase machine life of drill bits.

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Investigation of the effect of drilling conditions on the twist drill temperature during step-by-step and continuous dry drilling

Cited by 52 publications

References 12 publications

Pre-operative Screening and Manual Drilling Strategies to Reduce the Risk of Thermal Injury During Minimally Invasive Cochlear Implantation Surgery

Pre-operative Screening and Manual Drilling Strategies to Reduce the Risk of Thermal Injury During Minimally Invasive Cochlear Implantation Surgery

Surface roughness and energy consumption analysis of conventional and peck drilling approaches

An experimental study of cutting fluid on drilling AISI 1040 steel

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