CNC Machining and Simulation for Relief of Special-Shaped Stone

2012 ◽  
Vol 468-471 ◽  
pp. 69-73
Author(s):  
Yu Hou Wu ◽  
Hui Jie You ◽  
De Hong Zhao ◽  
Yan Liu
Keyword(s):  
Process Parameters ◽  
Feed Rate ◽  
Tool Path ◽  
Three Dimensional ◽  
Cutting Speed ◽  
Cnc Machining ◽  
Machining Process ◽  
Cutting Depth ◽  
Machining Center ◽  
Turn Milling

Use special-shaped stone turn-milling machining center (HTM50200) to achieve the production of complex relief. Through the ArtCAM establish the three dimensional relief model of Riverside Scene at Qingming Festival. Analysis of blank material characteristics and features of NC machining center, select the appropriate tool, calculate cutting depth 、cutting speed 、feed rate 、spindle speed and other process parameters by formulas. With ArtCAM/CAM module to make process of the preparation of the rough finishing, the semi-finishing and finishing, and then generate the tool path file. Simulation in VERICUT can optimize the potential collision, over-cutting and owe cut of the machining process, and the adoption of special-shaped stone machining center for milling to finalize production of the relief, summarize the experience in special-shaped stone processing.

scholarly journals Influence of Elastomer Layers in the Quality of Aluminum Parts on Finishing Operations

Metals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 289 ◽  
Author(s):  
Antonio Rubio-Mateos ◽  
Asuncion Rivero ◽  
Eneko Ukar ◽  
Aitzol Lamikiz
Keyword(s):  
Process Parameters ◽  
Feed Rate ◽  
Cutting Speed ◽  
Milling Process ◽  
Machining Process ◽  
Butadiene Rubber ◽  
Compression Tests ◽  
Compressive Behavior ◽  
Finishing Processes

In finishing processes, the quality of aluminum parts is mostly influenced by static and dynamic phenomena. Different solutions have been studied toward a stable milling process attainment. However, the improvements obtained with the tuning of process parameters are limited by the system stiffness and external dampers devices interfere with the machining process. To deal with this challenge, this work analyzes the suitability of elastomer layers as passive damping elements directly located under the part to be machined. Thus, exploiting the sealing properties of nitrile butadiene rubber (NBR), a suitable flexible vacuum fixture is developed, enabling a proper implementation in the manufacturing process. Two different compounds are characterized under axial compression and under finishing operations. The compression tests present the effect of the feed rate and the strain accumulative effect in the fixture compressive behavior. Despite the higher strain variability of the softer rubber, different milling process parameters, such as the tool feed rate, can lead to a similar compressive behavior of the fixture regardless the elastomer hardness. On the other hand, the characterization of these flexible fixtures is completed over AA2024 floor milling of rigid parts and compared with the use of a rigid part clamping. These results show that, as the cutting speed and the feed rate increases, due to the strain evolution of the rubber, the part quality obtained tend to equalize between the flexible and the rigid clamping of the workpiece. Due to the versatility of the NBR for clamping different part geometries without new fixture redesigns, this leads to a competitive advantage of these flexible solutions against the classic rigid vacuum fixtures. Finally, a model to predict the grooving forces with a bull-nose end mill regardless of the stiffness of the part support is proposed and validated for the working range.

NC Turning Process Parameters Optimization Based on Simulation Software

2012 ◽  
Vol 271-272 ◽  
pp. 452-456
Author(s):  
Shu Feng Sun ◽  
Ping Ping Wang ◽  
Xin Wu ◽  
Sen Lin
Keyword(s):  
Finite Element ◽  
Cutting Force ◽  
Process Parameters ◽  
Feed Rate ◽  
Cutting Speed ◽  
Simulation Software ◽  
Parameters Optimization ◽  
Machining Process ◽  
Optimum Process ◽  
Finite Element Software

Machining process parameters are main factors influencing machining quality and efficiency. Finite element models of tool and part are set up using finite element software Deform-3D. Variety laws of cutting force and temperature under different process parameters are simulated. The results are analyzed. Cutting force grows obviously with the growth of cutting speed (vc). However, cutting force fluctuates and decreases with the growth of cutting depth (ap) indicating the phenomenon of work hardening. Cutting force fluctuates and grows with the growth of feed rate ( f ). But the influence of feed rate ( f ) to cutting force is smaller than that of cutting speed (vc). The growths of the above mentioned three process parameters all cause the rise of temperature. Machining simulation research provides the optimum process parameters for CNC programming.

The Research of the Logarithmic Spiral Axis and NC Machining

2010 ◽  
Vol 135 ◽  
pp. 102-106 ◽  
Author(s):  
Ning Luo ◽  
You Yi Zheng ◽  
Guo Tai Han ◽  
Ke Jiang
Keyword(s):  
Geometric Modeling ◽  
Tool Path ◽  
Logarithmic Spiral ◽  
Nc Machining ◽  
Cnc Machining ◽  
Machining Process ◽  
Machining Center ◽  
High Fatigue ◽  
A New Technique ◽  
Cnc Machining Center

The characteristics of surface connection include high fatigue strength, high centering ability, easy dismantling and long life. According to these characteristics and based on the analysis of logarithmic spiral equation, the article explores a new technique of the matched logarithmic spiral profile connection to facilitate efficiently by formulating the machining process and analysing the part technology to determine the geometric modeling, tool path and simulation of NC machining graph and to inspect the process of Logarithmic spiral axes CNC Machining Center and CMM.

Optimization of Machining Process Parameters in Drilling of CFRP Using Multi-Objective Taguchi Technique, TOPSIS and RSA Techniques

2017 ◽  
Vol 25 (3) ◽  
pp. 185-192 ◽  
Author(s):  
K. Shunmugesh ◽  
K. Panneerselvam
Keyword(s):  
Mathematical Model ◽  
Process Parameters ◽  
Feed Rate ◽  
Cutting Speed ◽  
Weight Ratio ◽  
High Strength ◽  
Performance Characteristics ◽  
Machining Process ◽  
Taguchi Technique ◽  
Multi Objective

Carbon Fiber Reinforced Polymer (CFRP) are widely used in many engineering applications as replacement for various other elements to make use of the advantage of its high strength-weight ratio, durability and high corrosion resistance. The paper herein is an attempt to evaluate the drilling characteristics of CFRP by means of three different drill bit types (HSS, TiAlN and TiN) using Taguchi L27 (313) orthogonal array under dry condition. Firstly, the machining process parameters (cutting speed and feed rate) are optimized with multiple performance characteristics using Multi-objective Taguchi technique and TOPSIS. Secondly, mathematical model is developed to correlate the machining process parameters and the performance characteristics (surface roughness, circularity and cylindricity) using response surface analysis. ANOVA is used to validate the developed mathematical model of the responses. The investigation reveals that the results of TOPSIS technique are in good agreement with the multi-objective Taguchi technique and also feed rate is the most predominant factor which affects the responses.

Research on Five-Axis NC Machining Simulation for Four-Blade Propeller Based on UG&VERICUT

2014 ◽  
Vol 509 ◽  
pp. 75-79 ◽  
Author(s):  
Yan Wu ◽  
Keng Zhou ◽  
Gang Zheng ◽  
Er Geng Zhang
Keyword(s):  
Tool Path ◽  
Three Dimensional ◽  
Nc Machining ◽  
Machining Process ◽  
Solid Model ◽  
Machining Simulation ◽  
Simulation Process ◽  
Machining Center ◽  
Nc Machining Simulation ◽  
Five Axis

This paper studies the five-axis NC machining simulation process for four-blade propeller. Three-dimensional solid model of four-blade propeller is created based on UG, and then the tool path is generated using its CAM module, and finally the machining simulation is implemented on FIDIA five-axis machining center based on VERICUT. The correctness of NC machining process is verified. The method of the virtual simulation is also suitable for similar parts machining.

scholarly journals Studi Pengaruh Kecepatan Potong Dan Kedalaman Pemotongan Terhadap Kekasaran Permukaan Benda Hasil Pembubutan Menggunakan Pahat HSS Terhadap Material St41

2021 ◽  
Vol 3 (1) ◽  
pp. 58-64
Author(s):  
Rendi Wawanto ◽  
Erwansyah - ◽  
Ariyanto -
Keyword(s):  
Surface Roughness ◽  
Experimental Method ◽  
Process Parameters ◽  
Cutting Speed ◽  
Machining Process ◽  
Turning Process ◽  
Cutting Depth ◽  
Best Value ◽  
Cutting Speeds

In the machining process is very need high precision to get a good result. One of the benchmarks of the quality of the surface of the product workmanship in the machining process is surface roughness. The research was aimed at determining the contribution of the parameters of the machining process conducted on lathes. The research was conducted using lathes with machining process parameters that vary from cutting speed, and depth of nutrition, as well as using fixed parameters of feeding. The experiment was conducted using experimental method with the amount of cutting speed value (Vc) used by St 41 material of 20-25 m/min. The values used in this study were limited to 20, 21, and 22 m/min (Vc) values and cutting depths of 0.5, 0.8, and 1.0 mm. Research shows the results of turning (Vc) 20 m / min. best depth using a cutting depth of 0.5 mm with a surface roughness value (Ra) of 2,743 μm, and (Vc) of 21 m/min, the best depth using a depth of 0.5 mm with a surface roughness value (Ra)1,495 μm, and using (Vc) 22 m/min, the best depth uses a depth of 0.8 mm with a surface roughness value (Ra)1,376 μm. the best value of the turning process uses 3 cutting speeds and 3 cutting depths at the turning process using (Vc) 22 m/min with a depth of 0.8 mm with a surface roughness value (Ra)1,376 μm

The effect of process parameters and cutting tool shape on residual stress of SAE 52100 hard turned steel by high speed machining

2020 ◽  
Vol 235 (1-2) ◽  
pp. 290-300 ◽  
Author(s):  
Nelson Wilson Paschoalinoto ◽  
Ed Claudio Bordinassi ◽  
Roberto Bortolussi ◽  
Fabrizio Leonardi ◽  
Sergio Delijaicov
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Process Parameters ◽  
Feed Rate ◽  
High Speed ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cutting Depth ◽  
Tool Shape ◽  
Factorial Design Of Experiments

This study focused on determining the residual stress of SAE 52100 hard-turned steel. The objective was to evaluate and compare the effects of the cutting-edge geometry and cutting parameters (cutting speed, feed rate, and cutting depth) on the residual stresses of three different conventional inserts: S-WNGA08 0408S01020A 7025, T-WNGA08 0408T01020A 7025, and S-WNGA432S0330A 7025. Tests were performed on 60 samples of SAE 52100 hardened steel with an average hardness of 58.5 HRC. The circumferential residual stresses of the samples were measured by X-ray diffraction. A full factorial design of experiments with three factors and two levels each with two central points and a replicate was used for a statistical analysis. The most significant results were as follows: For all inserts, the measured residual stresses were compressive, which extended the tool lifespan. The residual stresses of the Type-S inserts were significantly influenced by the cutting speed and depth, and those of the Type-T insert were significantly influenced by the feed rate and cutting depth. In addition, the residual stresses of the insert 3 were more compressive than those of the other two types of inserts. In other words, residual stresses are more compressive for inserts with larger chamfer angles even as the principal residual stress profiles were all compressive. This work has also shown that it is possible to determine a significant statistical relationship between cutting forces and residual stresses, allowing force measurements to predict the residual stress without any information on process parameters.

scholarly journals Optimization of Process Parameters with Minimum Thrust Force and Torque in Drilling Operation Using Taguchi Method

2014 ◽  
Vol 6 ◽  
pp. 925382 ◽  
Author(s):  
Suleyman Neseli
Keyword(s):  
Taguchi Method ◽  
Process Parameters ◽  
Feed Rate ◽  
Thrust Force ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Helix Angle ◽  
Machining Process ◽  
Low Thrust ◽  
Taguchi Optimization

This research outlines the Taguchi optimization methodology, which is applied to optimize cutting parameters in drilling of AISI 1040 steel. The drilling parameters evaluated are cutting speed, feed rate, and helix angle. Series of experiments are conducted to relate the cutting parameters on the thrust force and torque. L27(313) orthogonal array, signal-to-noise ratio is employed to analyze the influence of these parameters on thrust force and torque during drilling. Analysis of variance (ANOVA) is used to study the effect of process parameters on machining process. The study shows that the Taguchi method is suitable to solve the stated problem with the minimum number of trials. The main objective is to find the important factors and combination of factors that influence the machining process to achieve low thrust force and torque. The analysis of the Taguchi method indicates that the feed rate is the most significant factor affecting the thrust force, while the cutting speed contributes the most to the torque.

An Experimental Study of Cutting Force on Large Cutting Depth Turning Titanium Alloy with CBN Tool

2014 ◽  
Vol 800-801 ◽  
pp. 237-240
Author(s):  
Li Fu Xu ◽  
Ze Liang Wang ◽  
Shu Tao Huang ◽  
Bao Lin Dai
Keyword(s):  
Experimental Study ◽  
Titanium Alloy ◽  
Cutting Force ◽  
Feed Rate ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cutting Depth ◽  
Cbn Tool ◽  
Cutting Experiment ◽  
Rough Turning

In this paper, the cutting experiment was used to study the influence of various cutting parameters on cutting force when rough turning titanium alloy (TC4) with the whole CBN tool. The results indicate that among the cutting speed, feed rate and cutting depth, the influence of the cutting depth is the most significant on cutting force; the next is the feed rate and the cutting speed is at least.

scholarly journals Optimization of Drilling Process Parameters Via Taguchi, TOPSIS and RSA Techniques

2017 ◽  
Vol 62 (3) ◽  
pp. 1803-1812 ◽  
Author(s):  
K. Shunmugesh ◽  
K. Panneerselvam
Keyword(s):  
Process Parameters ◽  
Feed Rate ◽  
Research Work ◽  
Cutting Speed ◽  
High Strength ◽  
Drilling Process ◽  
Drill Bit ◽  
Influence Of Process Parameters ◽  
Light Trucks ◽  
Cfrp Composite

AbstractCarbon Fiber Reinforced Polymer (CFRP) is the most preferred composite material due to its high strength, high modulus, corrosion resistance and rigidity and which has wide applications in aerospace engineering, automobile sector, sports instrumentation, light trucks, airframes. This paper is an attempt to carry out drilling experiments as per Taguchi’s L27(313) orthogonal array on CFRP under dry condition with three different drill bit type (HSS, TiAlN and TiN). In this research work Response Surface Analysis (RSA) is used to correlate the effect of process parameters (cutting speed and feed rate) on thrust force, torque, vibration and surface roughness. This paper also focuses on determining the optimum combination of input process parameter and the drill bit type that produces quality holes in CFRP composite laminate using Multi-objective Taguchi technique and TOPSIS. The percentage of contribution, influence of process parameters and adequacy of the second order regression model is carried out by analysis of variance (ANOVA). The results of experimental investigation demonstrates that feed rate is the pre-dominate factor which affects the response variables.

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