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RISEffect of Workpiece Flatness and Surface Finish on the Holding Force of a Magnetic Chuck
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Magnetic chucks are commonly used for workholding in precision grinding and turning of ferromagnetic materials. The workholding force produced by the chuck is strongly influenced by the texture ...
An Elastic Contact Model for the Prediction of Workpiece-Fixture Contact Forces in Clamping
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design and evaluation of machining fixture performance requires accurate knowledge of workpiece-fixture contact forces since they strongly impact workpiece accuracy during clamping and machining. ...
Modeling 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 ...
Effect of Substrate Flexibility on the Pressure Distribution and Lifting Force Generated by a Bernoulli Gripper
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the modeling and analysis of the pressure distribution and lifting force generated by a Bernoulli gripper when handling flexible substrates such as thin silicon wafers. A ...
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) ...