Simulation System for Quality Prediction and Parameters Optimization when Machining Ceramics Die Material

2008 ◽  
Vol 53-54 ◽  
pp. 299-303
Author(s):  
Zong Wei Niu ◽  
Zhi Yong Li ◽  
F.F. Wang ◽  
Dian Zhu Sun
Keyword(s):  
Surface Quality ◽  
Intelligent System ◽  
Simulation System ◽  
Parameters Optimization ◽  
Quality Prediction ◽  
Machining Parameters ◽  
Machining Quality ◽  
Die Material ◽  
Process Database

A simulation system was developed to forecast machining quality and optimize grinding parameters for the machining of ceramic die material. The system can forecast the surface quality of machined ceramic die material with high precision, optimize machining parameters and analyze the dominant factors. Based on the process database, the simulation system is applicable to various machining methods. It can help to raise the automaticity for the machining of ceramic die material and develop the farther intelligent system.

scholarly journals Face Grinding Surface Quality of High Volume Fraction SiCp/Al Composite Materials

2021 ◽  
Vol 34 (1) ◽  
Author(s):  
Xu Zhao ◽  
Yadong Gong ◽  
Guiqiang Liang ◽  
Ming Cai ◽  
Bing Han
Keyword(s):  
Friction Coefficient ◽  
Surface Morphology ◽  
Surface Quality ◽  
Volume Fraction ◽  
High Volume ◽  
Spindle Speed ◽  
High Volume Fraction ◽  
Machining Parameters ◽  
Al Composite

AbstractThe existing research on SiCp/Al composite machining mainly focuses on the machining parameters or surface morphology. However, the surface quality of SiCp/Al composites with a high volume fraction has not been extensively studied. In this study, 32 SiCp/Al specimens with a high volume fraction were prepared and their machining parameters measured. The surface quality of the specimens was then tested and the effect of the grinding parameters on the surface quality was analyzed. The grinding quality of the composite specimens was comprehensively analyzed taking the grinding force, friction coefficient, and roughness parameters as the evaluation standards. The best grinding parameters were obtained by analyzing the surface morphology. The results show that, a higher spindle speed should be chosen to obtain a better surface quality. The final surface quality is related to the friction coefficient, surface roughness, and fragmentation degree as well as the quantity and distribution of the defects. Lower feeding amount, lower grinding depth and appropriately higher spindle speed should be chosen to obtain better surface quality. Lower feeding amount, higher grinding depth and spindle speed should be chosen to balance grind efficiently and surface quality. This study proposes a systematic evaluation method, which can be used to guide the machining of SiCp/Al composites with a high volume fraction.

scholarly journals Research on the Influencing Factors of "Scale Veins" of Single Point Incremental Forming Workpieces Surface

2015 ◽  
Vol 9 (1) ◽  
pp. 1025-1032
Author(s):  
Shi Pengtao ◽  
Li Yan ◽  
Yang Mingshun ◽  
Yao Zimeng
Keyword(s):  
Surface Quality ◽  
Incremental Forming ◽  
Single Point ◽  
Spindle Speed ◽  
Experimental Results ◽  
Feed Speed ◽  
Single Point Incremental Forming ◽  
Machining Parameters ◽  
The Mathematical Model

To furthermore optimize the machining parameters and improve the surface quality of the workpieces manufactured by single point incremental forming method, the formation mechanism of the sacle veins on the metal incremental froming workpieces was studied through experiment method. The influence principle of the spindle speed, the feed speed and the material of tip of tools on the length of scale veins was obtained through analyzing the experimental results and building the mathematical model among the length of scale veins were feed speed and spindle speed through measuring the roughness of surfaces and observing the appearance of the forming workpieces. The experimental results showed that, the spindle speed, the feed speed and the material of tool tips have a significant effect on the scale veins formation on the surface of forming workpieces. Therefore, an appropriate group of spindle speed and feed speed can reduce the effect of scale veins on the roughness of single point incremental forming workpieces and furthermore improve the surface quality of forming workpieces.

Fractal-Based Analysis of the Relation Between Surface Finish and Machine Vibration in Milling Operation

2019 ◽  
Vol 19 (01) ◽  
pp. 2050006 ◽  
Author(s):  
Muhammad Owais Qadri ◽  
Hamidreza Namazi
Keyword(s):  
Surface Quality ◽  
Complex Structure ◽  
Vibration Signal ◽  
Depth Of Cut ◽  
Machining Parameters ◽  
Machined Surface ◽  
Machine Vibration ◽  
Milling Operation ◽  
Surface Changes

Analysis of surface quality of machined workpiece is an important issue in machining of materials. For this purpose, scientists analyze how the texture of machined surface changes due to different conditions. Machine vibration is one of the factors that highly affects the surface quality of machined surface. In this research, we analyze the relation between machine vibration and surface quality of machined workpiece. For this purpose, we employ fractal theory and analyze how the complex structure of machined surface changes with the complex structure of machine vibration signal in case of variations of machining parameters, namely, depth of cut, feed rate and spindle speed, in milling operation. Based on the results, variations of surface quality of machined workpiece are related with the variations of complexity of machine vibration signal. The method of analysis employed in this research can be applied to other machining operations in order to find the relation between machine vibration and surface quality of machined workpiece.

Effects of machining parameters on surface quality of composites reinforced with natural fibers

2020 ◽  
Vol 36 (1) ◽  
pp. 73-83
Author(s):  
Raveen John ◽  
Richard Lin ◽  
Krishnan Jayaraman ◽  
Debes Bhattacharyya
Keyword(s):  
Surface Quality ◽  
Natural Fibers ◽  
Machining Parameters

COMPLEXITY-BASED ANALYSIS OF THE INFLUENCE OF MACHINING PARAMETERS ON THE SURFACE FINISH OF DRILLED HOLES IN DRILLING OPERATION

Fractals ◽  
2019 ◽  
Vol 27 (06) ◽  
pp. 1950087 ◽  
Author(s):  
ASHFAQ AHAMED ◽  
ATHIF AHAMED ◽  
DILAN KATUWAWALA ◽  
TEOH TIONG EE ◽  
ZI HAN TAN ◽  
...  
Keyword(s):  
Surface Quality ◽  
Fractal Theory ◽  
Spindle Speed ◽  
Depth Of Cut ◽  
Machining Parameters ◽  
Dry Machining ◽  
Drilling Operation ◽  
Two Factors ◽  
Machining Operations

Drilling is a famous and widely used machining operation to make holes in the workpiece. The size and surface quality of drilled hole are two factors that should be considered mainly. In this research, we examine the effect of different machining parameters and conditions on the surface quality of generated hole in drilling operation. For this purpose, we employ fractal theory and investigate how the variations of depth of cut and spindle speed affect the complexity of surface texture of drilled holes in wet and dry machining conditions. Based on the obtained results, the increment of depth of cut and spindle speed in case of wet and dry machining causes lower complexity on the generated surface from drilling. In addition, the generated surface from dry machining is more complex than the generated surface from wet machining. The obtained method in this research can be applied to other machining operations in order to investigate the effect of machining parameters and conditions on the surface quality of machined workpiece.

scholarly journals An Experimental Analysis of Cutting Quality in Plasma Arc Machining

2020 ◽  
Vol 45 (1) ◽  
pp. 1-8
Author(s):  
Marin Gostimirović ◽  
Dragan Rodić ◽  
Milenko Sekulić ◽  
Andjelko Aleksić
Keyword(s):  
Cutting Speed ◽  
Kerf Width ◽  
Machining Accuracy ◽  
Maximum Height ◽  
Machining Parameters ◽  
Plasma Arc ◽  
Low Carbon ◽  
Plasma Arc Cutting ◽  
Machining Quality

Plasma arc cutting (PAC) is an unconventional process widely used in manufacturing of heavy plate products. This work reports on the research results of machining quality of the workpiece in the plasma arc cutting on the low carbon low alloy steel. An experimental investigation of the characteristics of machining accuracy and surface integrity was carried out for basic machining parameters (cutting speed, arc current, arc voltage, plasma gas pressure, stand-off distance and nozzle diameter). The kerf geometry was determined with three accuracy parameters (top kerf width, bottom kerf width and kerf taper angle). The parameters of deviation present due to plasma curvature were defined by drag and pitch of drag line. The surface roughness was determined with two main roughness parameters through scanning the surface topography (roughness average and maximum height of the profile). The surface properties were determined over microstructure in heat affected zone (HAZ). The results show an acceptable machining quality of the PAC, so that this process is an excellent choice for fast and efficient material removal. However, the plasma arc cutting is not suitable for the final machining because of the metallurgical variations in the HAZ.

COMPLEXITY-BASED DECODING OF THE EFFECT OF MACHINING PARAMETERS ON THE MACHINED SURFACE IN MILLING OPERATION

Fractals ◽  
2019 ◽  
Vol 27 (05) ◽  
pp. 1950076 ◽  
Author(s):  
KUSHAL BISSOONAUTH ◽  
HAMIDREZA NAMAZI
Keyword(s):  
Fractal Dimension ◽  
Surface Quality ◽  
Complex Structure ◽  
Depth Of Cut ◽  
Machining Parameters ◽  
Machined Surface ◽  
Milling Operation ◽  
Dry Conditions ◽  
Major Factors

Acquiring the desired surface quality is one of the major efforts in machining of materials. Milling operation is a widely used machining operation to shape the material in different forms. Machining parameters and conditions are two major factors that affect the surface quality of machined workpiece in milling operation. In this paper, we analyze the surface finish of machined workpiece under the variations of machining parameters and conditions (wet and dry conditions) in milling operation. For our analysis, we use fractal dimension as the indicator of complexity of structure. Based on the obtained results, in the case of wet machining condition, by increasing the depth of cut, feed rate and spindle speed in separate experiments, the fractal dimension of machined surface increases. However, the obtained results in the case of dry machining condition are not consistent with the variations of different machining parameters. The obtained results will be discussed in terms of complex structure of machined surface. The method of analysis employed in this research can be investigated with other machining operations to check how the machining parameters and conditions affect the surface quality of machined surface.

The Application of Circle Fitting in Detection of Machining Quality of Punched Sheets Based on Machine Vision

2012 ◽  
Vol 443-444 ◽  
pp. 477-483
Author(s):  
Fu Cheng You ◽  
Yu Jie Chen
Keyword(s):  
Machine Vision ◽  
Traditional Method ◽  
Detection System ◽  
Machining Parameters ◽  
Circle Fitting ◽  
Detection Experiment ◽  
Machining Quality ◽  
Low Efficiency ◽  
Fitting In

Detection of quality is a necessary procedure in the processing of machining punched sheets. It includes detection of the size of the holes and the distance of neighbored holes on the punched sheets and other machining parameters. Detection completed by workers is the traditional method which is low precision and low efficiency. According to the requirement of real industrial production this paper approaches a detection system based on machine vision which is used to detect the machining quality of punched sheets. The system is including the methods of detection of sub-pixel edge and circle fitting, and is used to improve the precision of detection. Experiment suggests that the detection result of this system is better.

Sign in / Sign up

Export Citation Format

Share Document