Investigation into deep hole drilling of austenitic steel with advanced tool solutions

Felinks, Nils; Rinschede, Timo; Biermann, Dirk; Stangier, Dominic; Tillmann, Wolfgang; Fuß, Moritz; Abrahams, Hendrik

doi:10.1007/s00170-021-07989-1

Cited by 8 publications

(3 citation statements)

References 36 publications

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“…Alireza et al [22] studied the advantages of an anti-vibration boring bar with polymer-based tuned mass damper. Nils et al [23] investigated the chatter control of CFRP-boring bar when drilling AISI 304. Daisuke et al [24] proposed a hybrid structure of CFRP and steel for machine tool spindle.…”

Section: Introductionmentioning

confidence: 99%

Vibration characteristics and machining performance of carbon fiber reinforced shaft in poor rigidity machining tool system

Ma,

Cai,

Yin

et al. 2024

Preprint

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Carbon fiber reinforced polymer (CFRP) materials have gained significant attention in the machining industry due to their exceptional strength-to-weight ratio and vibration characteristics. In the poor rigidity machining tool system, such as plunge milling, deep drilling and boring, the large overhanging shaft increases the requirement of chatter stability. In this study, a solution of carbon fiber reinforced shaft was proposed for the poor rigidity machining tool system. The vibration characteristic model was established by theoretical calculation, FE analysis and modal testing. The relationship between fiber arrangement and vibration characteristics was precisely described, and the optimization scheme of fiber reinforcement was proposed considering both the theoretical analysis and procedure technique. The machining performance of the optimal HSS-CFRP shaft was compared with that of the traditional HSS shaft in the same tool system. Main aspects that significantly affect the machining performance were thoroughly evaluated, including tool weight, energy consumption, dynamic characteristics and chatter stability. The effect of fiber reinforcement was fully discussed, which provided a reliable solution for the poor rigidity machining system and other potential applications with large overhanging shaft.

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Section: Introductionmentioning

confidence: 99%

Vibration characteristics and machining performance of carbon fiber reinforced shaft in poor rigidity machining tool system

Ma,

Cai,

Yin

et al. 2024

Preprint

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“…TA10 pipes have good corrosion resistance, cold forming properties, and weldability and are widely used in pipeline environments with complex service environments [3,4]. Although TA10 alloy has excellent mechanical properties, it is a typically difficult-to-machine material; its high strength and high hardness lead to high requirements for deep hole drilling; and it poses a challenge due to the closed environment, the difficulty of observation, and the difficulty of chip removal [5,6]. The deep-hole drilling system for machining TA10 alloy can be divided into gun drilling system, BTA system, jet suction drilling system, and DF system according to its chip removal method and cooling method [7,8].…”

Section: Introductionmentioning

confidence: 99%

Multiobjective Optimization of Cutting Parameters for TA10 Alloy Deep-Hole Drilling

et al. 2022

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In order to obtain better quality TA10 pipes, the Boring and Trepanning Association (BTA) deep-hole drilling process is used. However, this type of machining leads to difficult chip removal, tool wear, and poor hole-surface quality. In this study, a deep-hole drilling experiment was conducted on TA10 workpieces using the designed tool with different process parameters, and the process parameters were optimized by machining results with multiple objectives such as chip morphologies, tool wear, hole-axis deflection, and hole surface roughness. The results show that different process parameters have a great impact on the cutting process, with a higher feed resulting in smoother chip removal and a lower spindle speed resulting in lighter tool wear and less hole axis deflection. When the spindle speed is 145 r/min and the feed is 0.12 mm/r, the machined TA10 pipe meets both the accuracy requirement of roughness and the machining efficiency.

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“…Next, some scholars explored the structural parameters and position angles of the guide pads of the deep hole drilling tool. Felinks et al [ 19 ] indicated the effect of the extruding chamfer of the guide pad on the vibration of the deep hole machining tool system. Neo et al [ 20 ] illustrated the variation law of the hole wall roundness of deep hole gundrilling with guide pad wear and drilling depth.…”

Section: Introductionmentioning

confidence: 99%

Analytical Model of Hole Diameter and Self-Guiding Machining Mechanism of BTA Deep Hole Drilling

Zheng

et al. 2022

Materials

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The goal of this study was to explore the self-guided machining mechanism of boring and trepanning association (BTA) deep hole drilling and realize precise control of the machining quality. The motion analysis method was used to analyze the center motion trajectory of the drill during the entrance, and the self-guiding mechanism and hole-forming mechanism of BTA deep hole drilling were revealed. Considering the bending deformation of the drilling tube and the tool structure parameters, according to the elastic-plastic deformation theory and Hertzian contact theory, a novel analytical model of the extrusion contact between the guide pads and the hole wall of the BTA deep hole drilling was established for the theoretical prediction of the extrusion deformation and the machining hole diameter. Combined with the finite element method (FEM) simulation model, the variation law of the contact inclination angle, contact stress, and extrusion deformation of the guide pads and the hole wall with the drilling conditions were studied. The total extrusion deformation between the guide pad and the hole wall was between 10 and 50 μm. The maximum error between the FEM simulation results and the test results was 18.1%, and the maximum error between the analytical model results and the test results was 23.6%. The simulation and experimental results showed that the established extrusion contact model could accurately predict the extrusion deformation of the hole wall and the machining hole diameter.

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Investigation into deep hole drilling of austenitic steel with advanced tool solutions

Cited by 8 publications

References 36 publications

Vibration characteristics and machining performance of carbon fiber reinforced shaft in poor rigidity machining tool system

Vibration characteristics and machining performance of carbon fiber reinforced shaft in poor rigidity machining tool system

Multiobjective Optimization of Cutting Parameters for TA10 Alloy Deep-Hole Drilling

Analytical Model of Hole Diameter and Self-Guiding Machining Mechanism of BTA Deep Hole Drilling

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