Friction drilling of cast metals

Miller, Scott F.; Jia, Ting; Shih, Albert J.

doi:10.1016/j.ijmachtools.2005.09.003

Cited by 99 publications

(74 citation statements)

References 7 publications

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“…Surface engineering technologies have influenced on the development of other production technologies and materials processing such as surface modification [1 -13] as well as metal forming processing [14][15][16][17][18][19][20][21][22]. One of the metal forming processes is the hole flanging which is intended to increase the diameter of the previously cut hole and to form around it the conical or cylindrical flange.…”

Section: Introductionmentioning

confidence: 99%

Selected properties of laser cladding coatings shaped using Flow drill technology

2017

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Abstract. The paper presents the investigations of selected chemical and mechanical properties as well as macro-and microstructure of materials formed using thermal drilling process (Flow drill). The aim of this study was to determine the microstructure of the coatings produced using laser cladding with powder technology. The coatings were produced on the lowcarbon steel using 1 kW disc laser. After modification of surface, the thermal drilling process was applied. To produce all coatings, the pure copper powder was used. In this study the laser power equal of 500, 700 and 900 W were used. The microstructure, chemical composition (EDS) and microhardness were investigation. It was found that the surface modification of low carbon steel and next conducted thermal drilling process caused change the surface properties on the hole flange. It was found that surface modification of steel using laser cladding with cooper powder and next Flow drill process contributes to the change in microhardness and chemical composition on hole flange.

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Section: Introductionmentioning

confidence: 99%

Selected properties of laser cladding coatings shaped using Flow drill technology

2017

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“…At the elevated temperatures, the plasticity of the work-material has increased while the fracture has decreased. The temperature of the tool and the workpiece is high and the workpiece deformation is very large in friction drilling [2].…”

Section: Introductionmentioning

confidence: 99%

“…Pre-heating of brittle workpiece causes more cylindricality, less fracture to decrease cracks, petal formation, and radial displacement of bushing. The main reason for the deformation of the workpiece and tool wearing is stress-strain, which occurs during the friction drilling process [2].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation of the Effect of Depth and Diameter of Pre-drilling on Friction Drilling of A7075-T651 Alloy

Demir¹

2016

jscmt

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Friction drilling is a non-traditional drilling process, in which specimens are drilled by means of frictional heat, which is obtained from friction effect in between rotating conical tool and workpiece area. The main purpose of current study was to investigate the effect of pre-drilling depth and diameter on the bushing shape, initial deformation and frictional heat in friction drilling of A7075-T651 aluminum alloy, known as a brittle material. Results showed that the effect of pre-drilling depended on the geometrical dimensions of the tip of the tool. The initial deformation was reduced, frictional heat was generated regularly and bushing shape was in the form of cylindrical with less cracks and petal formation in conditions predrilling diameter close to the end diameter of the tip of the tool and pre-drilling depths bigger than its length. The highest temperature was recorded at 3000 rpm spindle speed and 40 mm/min feed rate.

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“…In this respect, Miller et al [8] applied friction drilling to characterize the microstructures and indentation hardness changes in the friction drilling of carbon steel, alloy steel, aluminum, and titanium. Miller et al [9] suggested that preheating the brittle material (cast metal) workpiece and using high speed drilling condition could generate a cylindrical shaped bushing without significant radial fracture. Lee et al [10] had successfully applied friction drilling for machining cast superalloy IN-713LC to assess the roundness, the surface roughness, and the hardness of machined-hole-wall.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Thermal Friction Drilling Process Based on Taguchi Method and Fuzzy Logic Technique

El-Bahloul¹,

El-Shourbagy²,

El-Midany³

2015

IJSEA

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Abstract:The main purpose of this research is to study the optimal process parameters for thermal friction drilling process on AISI 304 stainless steel. The experiments were conducted based on Taguchi experimental design method, and the multiple performance characteristics correlated with the resultant axial force, radial force, hole diameter dimensional error, roundness error, and bushing length, were investigated by fuzzy logic technique. The significant process parameters that most intensively affected the multiple performance characteristics and the optimal combination levels of process parameters were determined through the analysis of variance and the response graph. A test rig was manufactured at Shoman Company -Egypt to perform the experimental work, and the tools were offered by Flowdrill Company -Germany. Experimental results confirm that this approach is simple, effective and efficient for simultaneous optimization of multiple quality characteristics in thermal friction drilling process, as the bushing length produced is more than five times the workpiece thickness.

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Friction drilling of cast metals

Cited by 99 publications

References 7 publications

Selected properties of laser cladding coatings shaped using Flow drill technology

Selected properties of laser cladding coatings shaped using Flow drill technology

An Experimental Investigation of the Effect of Depth and Diameter of Pre-drilling on Friction Drilling of A7075-T651 Alloy

Optimization of Thermal Friction Drilling Process Based on Taguchi Method and Fuzzy Logic Technique

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