Journal ArticleDOI
Analysis of Forces and Temperatures in Conventional and Ultrasonically-Assisted Cutting of Bone
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TLDR
In this article, the authors present results of finite-element simulations of conventional cutting and ultrasonically assisted cutting of bone in order to understand thermomechanics of the process and investigate the levels of tool penetration force and temperatures induced in the bone when a hard cutting tool penetrates into it in both types of cutting.Abstract:
Bone cutting is a frequently used procedure in orthopaedic and neuro surgeries. Current research on bone cutting is concerned with the efforts to decrease the forces generated during cutting the bone as well as temperature to avoid mechanical and thermal damage (bone necrosis) induced by surgical tools. The paper presents results of finite-element simulations of conventional cutting (CC) and ultrasonically-assisted cutting (UAC) of bone in order to understand thermomechanics of the process. The study was aimed at investigating the levels of tool-penetration force and temperatures induced in the bone when a hard cutting tool penetrates into it in both types of cutting. The models allow the quantitative analysis of forces and temperatures produced during the cutting process. The use of UAC reduces the tool penetration force and temperature in the cutting regionread more
Citations
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Journal ArticleDOI
Experimental and numerical study of ultrasonically-assisted drilling.
Mohammad Lotfi,Saeid Amini +1 more
TL;DR: It was revealed that intermittent movement of drill bit in vibration method causes the total time of heat transfer between workpiece and drill bit to be reduced resulting lower built‐up edge formation compared to conventional drilling.
Journal ArticleDOI
A review of cutting mechanics and modeling techniques for biological materials
Behrouz Takabi,Bruce L. Tai +1 more
TL;DR: This review paper is focused on the mechanical concepts and modeling techniques utilized to simulate tissue cutting such as cutting forces and chip morphology, and presents a broad and in-depth vision of the methods suitable for tissue and bone cutting simulations.
Journal ArticleDOI
Parametric effect of vibrational drilling on osteonecrosis and comparative histopathology study with conventional drilling of cortical bone.
TL;DR: The specimens drilled with vibrational drilling show less damage in terms of osteonecrosis near the drill site which shows the significance of vibrational drills in case of orthopedic surgeries.
Journal ArticleDOI
Experimental and Finite Element Analysis of Force and Temperature in Ultrasonic Vibration Assisted Bone Cutting
TL;DR: The verified FE bone cutting model provides an efficient way to assist the optimization of the processing conditions in bone cutting operations.
Journal ArticleDOI
In vivo evaluation of machining forces, torque, and bone quality during skull bone grinding.
TL;DR: Investigation of neurosurgical bone grinding with varying parameters on skull bone using a miniature grinding burr revealed that as the rotational speed is increased, the cutting forces and torque showed a decreasing trend, but the increase in feed rate and depth of cut leads to the escalation in response characteristics.
References
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Journal ArticleDOI
Rotary ultrasonic machining of ceramic matrix composites: feasibility study and designed experiments
TL;DR: In this article, rotary ultrasonic machining (RUM) is introduced into drilling holes on CMC panels for the first time, and the feasibility to machine CMC using RUM is investigated.
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Custom-designed orthopedic implants evaluated using finite element analysis of patient-specific computed tomography data: femoral-component case study
TL;DR: This paper describes an approach where the custom design is based on a Computed Tomography scan of the patient's joint and the proposed design will customize both the articulating surface and the bone-implant interface to address the most common problems found with conventional knee-IMplant components.
Journal ArticleDOI
Measurement of thermal conductivity of bovine cortical bone.
TL;DR: Because the directional differences are small, it is concluded that bovine cortical bone can be treated as thermally isotropic.
Journal ArticleDOI
Determination of work material flow stress and friction for FEA of machining using orthogonal cutting tests
Tuğrul Özel,Erol Zeren +1 more
TL;DR: In this paper, the Johnson-Cook (JC) constitutive work flow stress model is used to characterize work material flow stress and friction at primary and secondary deformation zones around the cutting edge by utilizing orthogonal cutting tests.
Journal ArticleDOI
A study of the bone machining process—Drilling
TL;DR: Results indicate that drill point geometry is critical when attempting to minimize drilling forces and that there appears to be a softening effect in bone when drilled at relatively high speeds.