International Journal of Precision Engineering and Manufacturing
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A study on the laser preheating effect of inconel 718 specimen with rotated angle with respect to 2-axis
International Journal of Precision Engineering and Manufacturing - Tập 15 - Trang 189-192 - 2014
Lately, LAM(Laser Assisted Machining) is a newly developed method for processing of difficult-to-cut material. LAM is a processing method which softens the difficult-to-cut material by laser preheating. The purpose of this research is to study the laser preheating effect of Inconel 718 specimen with rotated angle with respect to 2-axis in LAM. A specimen with rotated angle with respect to 1-axis i......
Analysis and Optimization of Laying Process Parameters of Carbon Fiber Reinforced Thermoplastic Composites for Additive Manufacturing Using Robot
International Journal of Precision Engineering and Manufacturing - - Trang 1-25 - 2023
The research object of this paper is carbon fiber reinforced thermoplastic composite CF/PEEK. Through control planning of robot motion, simulation and experiment on Paving pressure and paving speed are carried out, and on this basis analysis and optimization are carried out. In the analysis of laying pressure, the deformation of rigid press roll and flexible press roll under different pressures is......
Investigations into performance of dry EDM using slotted electrodes
International Journal of Precision Engineering and Manufacturing - Tập 12 - Trang 957-963 - 2011
Dry EDM is an emerging EDM technology, which uses gas as dielectric fluid. Due to low density of gaseous dielectric, the process experiences i) unconstrained plasma expansion thereby reducing the effective material removal rate (MRR) and ii) inefficient disposal of debris. This work proposes use of electrodes with peripheral slots to provide more space for the flow of dielectric for effective debr......
Evaluation of cellulose electro-active paper made by tape casting and zone stretching methods
International Journal of Precision Engineering and Manufacturing - Tập 11 - Trang 987-990 - 2010
Cellulose has been discovered as a smart material that can be used as sensor and actuator material. In this paper, cellulose smart material termed as electro-active paper (EAPap) is prepared by an automated process that includes tape casting and zone stretching. To evaluate characteristics of the EAPap, its Young’s modulus and piezoelectric charge constant are measured depending on the orientation......
A study on the acoustic energy harvesting with Helmholtz resonator and piezoelectric cantilevers
International Journal of Precision Engineering and Manufacturing - Tập 14 - Trang 1629-1635 - 2013
Some kinds of thermofluid instruments are using Helmholtz resonators for absorbing noises radiated from them. Since the resonance frequency of a Helmholtz resonator depends on the ratio of the resonant volume to the neck size, operating frequency range can be easily tuned and thus the Helmholtz resonator is well-suited for noise control in a wide range of frequency. Besides the noise control appli......
Erratum to: Datum unit optimization for robustness of a journal bearing diagnosis system
International Journal of Precision Engineering and Manufacturing - Tập 17 Số 1 - Trang 151-151 - 2016
A review on 3D printed bioimplants
International Journal of Precision Engineering and Manufacturing - Tập 16 - Trang 1035-1046 - 2015
Additive manufacturing (AM) also known as 3D printing have been making inroads into medical applications such as surgical models and tools, tooling equipment, medical devices. One key area researchers are looking into is bioimplants. With the improvement and development of AM technologies, many different bioimplants can be made using 3D printing. Different biomaterials and various AM technologies ......
Semi-analytic correlation for predicting permeability of micro-square-pillar array
International Journal of Precision Engineering and Manufacturing - Tập 15 - Trang 1383-1387 - 2014
In this study, we consider the permeability of hexagonal arrays of micro-square pillars. A semi-analytic model for predicting the permeability of micro-square pillar arrays is developed. In addition, a numerical analysis is performed with taking into account the effect of meniscus curvature. The analytic and numerical results are in good agreement, within an error of 3%. Based on our analytic and ......
Advanced burr-free hole machining using newly developed micro compound tool
International Journal of Precision Engineering and Manufacturing - Tập 13 - Trang 947-953 - 2012
This paper focuses on the efforts for minimization of burr formation and improvement of hole surface roughness following machining of micro through-hole. The main idea deals with the development of a micro compound tool consisting of two different parts: a micro flat drill (drilling part) and a micro diamond-electroplated-tool (grinding part). The finishing diameter of each drilling and grinding p......
Quantification and Adjustment of Pressure and Vibration Elicited by Transcutaneous Electrical Stimulation
International Journal of Precision Engineering and Manufacturing - Tập 19 - Trang 1233-1238 - 2018
We proposed a transcutaneous electrical stimulation method to elicit pressure and vibration at any intended intensity and/or frequency. First, pressure and vibration were induced via a series of rectangular pulse trains delivered to the surface electrodes placed on the index finger pad of 46 healthy subjects in total. Load cells and coin motors were employed to quantify the perception intensity an......
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