A Study of Cutting Temperatures in Turning Carbon-Fiber-Reinforced-Plastic (CRFP) Composites with Nose Radius Worn Tools

2018 ◽  
Vol 26 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Chung-Shin Chang
Keyword(s):  
Carbon Fiber ◽  
Cutting Temperature ◽  
High Strength ◽  
Heat Transfer Analysis ◽  
Fiber Reinforced ◽  
Nose Radius ◽  
Element Analysis ◽  
Reinforced Plastics ◽  
Inverse Heat Transfer ◽  
Carbon Fiber Reinforced

Nine kinds of carbide nose radius worn tools were used in turning of high-strength carbon-fiber-reinforced-plastics (CFRP) materials to study the cutting temperature of tip's surface. A new cutting temperature model using the variations of shear and friction plane areas occurring in tool nose wear situations are presented in this paper. The frictional forces and heat generated in the cutting process are calculated by using the measured cutting forces and the theoretical cutting analysis. The heat partition factor between the tip and chip is solved by using the inverse heat transfer analysis, which utilizes temperature on the K type carbide tip's surface measured by infrared as the input. The tip's surface temperature is determined by finite element analysis (FEA) and compared with temperatures obtained from experimental measurements. Good agreement demonstrates the proposed model.

A Study of Cutting Temperatures in Turning Carbon-Fiber-Reinforced-Plastic (CRFP) Composites with Nose Radius Tools

2015 ◽  
Vol 649 ◽  
pp. 38-45 ◽  
Author(s):  
Chung Shin Chang
Keyword(s):  
Carbon Fiber ◽  
Cutting Temperature ◽  
High Strength ◽  
Heat Transfer Analysis ◽  
Fiber Reinforced ◽  
Nose Radius ◽  
Element Analysis ◽  
Reinforced Plastics ◽  
Inverse Heat Transfer ◽  
Carbon Fiber Reinforced

Nine kinds of chamfered main cutting edge nose radius tools were used in turning of high-strength carbon-fiber-reinforced-plastics (CFRP) materials to study the cutting temperature of tip's surface. A new cutting temperature model using the variations of shear and friction plane areas occurring in tool nose situations are presented in this paper. The frictional forces and heat generated in the cutting process are calculated by using the measured cutting forces and the theoretical cutting analysis. The heat partition factor between the tip and chip is solved by using the inverse heat transfer analysis, which utilizes temperature on the K type carbide tip’s surface measured by infrared as the input. The tip’s carbide surface temperature is determined by finite element analysis (FEA) and compared with temperatures obtained from experimental measurements. Good agreement demonstrates the proposed model.

A Study of Cutting Temperatures in Turning Carbon-Fiber-Reinforced -Plastics (CFRP) Composites with Sharp Worn Tools

2011 ◽  
Vol 233-235 ◽  
pp. 2790-2793
Author(s):  
Chung Shin Chang ◽  
Yuh Ming Chang
Keyword(s):  
Carbon Fiber ◽  
Cutting Tools ◽  
Heat Transfer Analysis ◽  
Fiber Reinforced ◽  
Element Analysis ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Cfrp Composites ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced

Temperatures of the carbide tip's surface when turning Carbon-Fiber-Reinforced Plastics (CFRP) composites with a sharp worn main cutting edge tool is investigated. The frictional forces and heat generated in the basic cutting tools are calculated by using the measured cutting forces and the theoretical cutting analysis. The heat partition factor between the tip and chip is solved by using the inverse heat transfer analysis, which utilizes temperature on the carbide tip’s surface measured by infrared as the input. The tip’s surface temperature is determined by finite element analysis (FEA) and compared with temperatures obtained from experimental measurements. Good agreement demonstrates the accuracy of the proposed model.

Prediction of Cutting Temperatures in Turning of Glass Fiber Reinforced Plastics (GFRP) Materials

2008 ◽  
Vol 24 (4) ◽  
pp. 357-368 ◽  
Author(s):  
C.-S. Chang ◽  
Y.-L. Lin ◽  
B.-C. Hwang
Keyword(s):  
Glass Fiber ◽  
Cutting Tools ◽  
Cutting Temperature ◽  
High Strength ◽  
Heat Transfer Analysis ◽  
Fiber Reinforced ◽  
Element Analysis ◽  
Reinforced Plastics ◽  
Glass Fiber Reinforced ◽  
Fiber Reinforced Plastics

AbstractThirty six kinds of chamfered and unchamfered main cutting edge carbide tips were used in turning of high-strength glass-fiber-reinforced plastics (GFRP) materials to study the cutting temperature of tip's surface. The frictional forces and heat generated on elementary cutting tools are calculated by using the measured cutting forces and the theoretical cutting analysis. The heat partition factors between the tip and chip are solved by using the inverse heat transfer analysis, which utilizes temperature on the K type carbide tip's surface measured by infrared as the input. The tip's surface temperature of the carbide is solved by finite element analysis (FEA) and compared with those obtained from experimental measurements. A good agreement demonstrates the accuracy of the proposed model.

Buckling Analysis of Carbon Fiber Reinforced Plastics Cylinders under Axial Compression

2013 ◽  
Vol 395-396 ◽  
pp. 76-79
Author(s):  
Da Huang ◽  
Cheng Hong Duan
Keyword(s):  
Carbon Fiber ◽  
Axial Compression ◽  
Composite Structures ◽  
Fiber Reinforced ◽  
Element Analysis ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced ◽  
The Stability

In this paper, the stability of carbon fiber reinforced plastics (CFRP) cylinders under axial compression was studied by the finite element analysis method. According to the Riks method, compressive capacity of the composite structures was investigated by nonlinear analysis, in which the eigen buckling modes were considered in the form of initial defects. And the post-buckling performances of different structures were also compared.

Prediction of the Cutting Temperatures of Turning Stainless Steels With Nose Radius Worn Tools

2010 ◽  
Author(s):  
Chung-Shin Chang
Keyword(s):  
Cutting Temperature ◽  
Heat Transfer Analysis ◽  
Temperature Model ◽  
Nose Radius ◽  
Element Analysis ◽  
Heat Partition ◽  
Inverse Heat Transfer ◽  
Proposed Model ◽  
Partition Factor ◽  
Good Agreement

To study the cutting forces and the carbide tip’s surface temperatures of stainless steel (SUS 304) with a chamfered main cutting edge nose radius worn tools. A new cutting temperature model incorporating tool worn factor and using the variations of shear and friction plane areas occurring in tool worn situations are presented in this paper. The heat partition factor between the tip and chip is solved by using g the inverse heat transfer analysis, which utilizes temperature on the carbide tip’s surface measured by infrared as the input. The tip’s carbide surface temperature is determined by finite element analysis (FEA) and compared with temperatures obtained from experimental measurements; good agreement demonstrates the proposed model.

A Study on Cutting Temperatures of Turning Stainless Steel with Chamfered Main Cutting Edge Nose Radius Tools

2009 ◽  
Author(s):  
Chung-Shin Chang
Keyword(s):  
Stainless Steel ◽  
Cutting Tools ◽  
Cutting Temperature ◽  
Cutting Edge ◽  
Heat Transfer Analysis ◽  
Nose Radius ◽  
Element Analysis ◽  
Inverse Heat Transfer ◽  
Frictional Forces ◽  
P Type

Temperatures of the carbide tip’s surface when turning stainless steel with a chamfered main cutting edge nose radius tool are investigated. The mounting of the carbide tip in the tool holder is ground to a nose radius as measured by a toolmaker microscope, and a new cutting temperature model developed from the variations in shear and friction plane areas occurring in tool nose situations are presented in this paper. The frictional forces and heat generated in the basic cutting tools are calculated using the measured cutting forces and the theoretical cutting analysis. The heat partition factor between the tip and chip is solved by the inverse heat transfer analysis, which utilizes the temperature on the P-type carbide tip’s surface measured by infrared as the input. The tip’s carbide surface temperature is determined by finite element analysis (FEA) and compared with temperatures obtained from experimental measurements. Good agreement demonstrates the accuracy of the proposed model.

THE EFFECTS OF DEBULKING ON THE MICROSTRUCTURE OF CARBON FIBER REINFORCED COMPOSITES

2021 ◽  
Author(s):  
MATHEW SCHEY ◽  
SCOTT STAPLETON ◽  
TIBOR BEKE
Keyword(s):  
Carbon Fiber ◽  
Volume Fraction ◽  
Weight Ratio ◽  
High Strength ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Three Samples ◽  
The Matrix ◽  
Carbon Fiber Reinforced Composites ◽  
Carbon Fiber Reinforced

Carbon fiber reinforced plastics (CFRPs) are widely used due to their high strength to weight ratios. A common process manufacturers use to increase the strength to weight ratio is debulking. Debulking is the process of transversely compacting a dry fibrous reinforcement prior to wet out with the matrix resin, in order to induce fiber nesting, effectively increasing the volume fraction of the sample. While this process is widely understood macroscopically its effects on fibrous microstructures have not yet been well characterized. The aim of this work is to compare the microstructures of three CFRPs, varying only the debulking step in the manufacturing process. The microstructural effects of debulking on three unidirectional CFRPs made from three different levels of debulking were studied. High resolution serial sections of all three samples were taken using the UES ROBO-MET at the NASA Glenn Research Center in Cleveland, Ohio. Using these scans, the fiber positions were measured and connected to make fiber paths. Statistical descriptors such as local fiber and void volume fractions, and void distribution and morphology were then generated for each sample and compared. Using these descriptors, the effects of debulking on the composite microstructure can be measured.

A Study of the Cutting Temperatures of Turning Stainless Steels with Chamfered Main Cutting Edge Nose Radius Worn Tools

2010 ◽  
Vol 126-128 ◽  
pp. 760-766
Author(s):  
Chung Shin Chang
Keyword(s):  
Cutting Temperature ◽  
Cutting Edge ◽  
Heat Transfer Analysis ◽  
Nose Radius ◽  
Element Analysis ◽  
Heat Partition ◽  
Inverse Heat Transfer ◽  
Proposed Model ◽  
Partition Factor ◽  
Good Agreement

To study the cutting forces and the carbide tip's surface temperatures of stainless steel (SUS 304) with a chamfered main cutting edge nose radius worn tools. A new cutting temperature model incorporating tool worn factor and using the variations of shear and friction plane areas occurring in tool worn situations are presented in this paper. The heat partition factor between the tip and chip is solved by using the inverse heat transfer analysis, which utilizes temperature on the carbide tip’s surface measured by infrared as the input. The tip’s carbide surface temperature is determined by finite element analysis (FEA) and compared with temperatures obtained from experimental measurements; good agreement demonstrates the proposed model.

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