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RISModeling of Workpiece Location Error Due to Fixture Geometric Error and Fixture-Workpiece Compliance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Several fixture-related error sources contribute to workpiece location error in a machining system. Inaccurate part placement in the fixture relative to the cutting tool, for example, can negatively ...
The Constant Force Component due to Material Separation and Its Contribution to the Size Effect in Specific Cutting Energy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The contribution of material separation in cutting ductile metals to the constant force component, and, hence, to the size effect in specific cutting energy is explored in this paper. A ...
Material Strengthening Mechanisms and Their Contribution to Size Effect in Micro-Cutting
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The specific cutting energy in machining is known to increase nonlinearly with decrease in uncut chip thickness. It has been reported in the literature that this phenomenon is dependent on ...
Evidence of Ductile Tearing Ahead of the Cutting Tool and Modeling the Energy Consumed in Material Separation in Micro-Cutting
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Orthogonal cutting experiments using a quick-stop device are performed on Al2024-T3 and OFHC copper to study the chip–workpiece interface in a scanning electron microscope. Evidence of ductile ...
Study of Ductile-to-Brittle Transition in Single Grit Diamond Scribing of Silicon: Application to Wire Sawing of Silicon Wafers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The ductile-to-brittle cutting mode transition in single grit diamond scribing of monocrystalline silicon is investigated in this paper. Specifically, the effects of scriber tip geometry, coefficient ...
Force Modeling in Laser-Assisted Microgrooving Including the Effect of Machine Deflection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Laser assisted mechanical micromachining is a process that utilizes highly localized thermal softening of the material by continuous wave laser irradiation applied simultaneously and directly in ...
A Molecular Dynamics Study of PDMS Stamp-Based Graphene Exfoliation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Molecular dynamics (MD) simulations are used to gain insights into the process conditions that cause separation of graphene layers from a highly ordered pyrolytic graphite (HOPG) source in a polydimethylsiloxane (PDMS) ...
Analysis of Handling Stresses in Thin Solar Silicon Wafers Generated by a Rigid Vacuum Gripper
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Breakage of thin solar silicon wafers during handling and transport depends on the stresses imposed on the wafer by the handling/transport device. In this paper, the stresses generated in solar silicon wafers by a rigid ...
An Explanation for the Size-Effect in Machining Using Strain Gradient Plasticity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper aims to explain the size-effect in the Primary Deformation Zone (PDZ) in machining using strain gradient plasticity theory. Considering a parallel-sided shear zone configuration, models ...
Modeling of the Holding Force in an Electromagnetic Chuck
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper addresses the modeling and prediction of the normal holding force in an electromagnetic chuck used in precision machining applications. Knowledge of the normal holding force is necessary ...