نتایج جستجو برای: drilling thrust force

تعداد نتایج: 208467  

Journal: :Procedia CIRP 2022

Edentulism is a condition that results in the partial or total loss of teeth. It may lead to problems during chewing and be cause self-isolation low self-esteem. can resolved both with removable prostheses (dentures) fixed implants, latter being more efficient. The installation implant involves real surgical operation which jaw/mandibular bone drilled through special drill. One main cautions su...

In this research, finite element analysis of the conventional drilling and vibration assisted drilling is carried out. The ABAQUS software is employed for FE analysis. The Johnson-Cook models for both plastic deformation and damage are employed for FE simulation.The results of the FE analysis are then verified with experimental results in both conventional and vibration assisted drilling on Al ...

Journal: :Manufacturing review 2021

Hole drilling in Ti6Al4V titanium alloy is challenging due to its poor machinability resulting from high-temperature strength and low thermal conductivity. Therefore, an evaluation of the helical milling process carried out by comparing thrust force, surface roughness, machining temperature, burr size, hole diametrical accuracy with conventional process. The results indicate advantage terms low...

Journal: :Mechanika 2022

Composite/metal stack materials, which have excellent mechanical properties, are wideyl used in aerospace industry. However, their machining operation is challenging due to two different material. In this study materials consisting of CFRP and Al 7075-T6 were drilled with drilling parematers investigate delamination defect, thrust force, inner surface roughness hole wear the cutting tool. Cutti...

2011
Chan-Bae Park Byung-Song Lee Hyung-Woo Lee

In case of high-speed maglev trains, the propulsion force of their Linear Synchronous Motor (LSM) is an essential performance element since the LSM is responsible for both the propulsion and levitation of the train. A large thrust force ripple causes vibration, noise and severe levitation disturbance during the train operation. Because of these reasons, efforts must be made to reduce the thrust...

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