Generation of scallop free machined surfaces in CFRPs with minimum waviness and defects using eccentric sleeve grinding

2021 ◽  
pp. 117431
Author(s):  
Danish Handa ◽  
Sooraj V. S.
Keyword(s):  
Machined Surfaces

Generalized Assessment of Machined Surfaces Quality

2020 ◽  
Vol 40 (10) ◽  
pp. 822-825
Author(s):  
N. M. Rasulov ◽  
U. M. Nadirov ◽  
M. Z. Alekberov
Keyword(s):  
Machined Surfaces

Porosity Quatification of Cast Aluminium Alloys on Machined Surfaces Using Metallography and Eddy-Currents

2015 ◽  
Vol 647 ◽  
pp. 188-194
Author(s):  
Břetislav Skrbek
Keyword(s):  
Surface Treatment ◽  
Aluminium Alloys ◽  
Eddy Currents ◽  
Initiation Site ◽  
Cast Aluminium ◽  
Strength And Ductility ◽  
Machined Surfaces

The porosity is unwanted phenomenon mostly that is tried to eliminate. The pores are initiation site of fatigue fractions usually, they worse strength and ductility of materials, quality of machined surfaces and their following surface treatment.

Characterisation of Residual Stresses in Machined Surfaces of a High Strength Nickel-Base Superalloy

2006 ◽  
Vol 524-525 ◽  
pp. 587-592 ◽  
Author(s):  
Wei Li ◽  
Michael Preuss ◽  
Philip J. Withers ◽  
Dragos Axinte ◽  
Paul Andrews
Keyword(s):  
Residual Stresses ◽  
High Strength ◽  
Nickel Base Superalloy ◽  
Nickel Base ◽  
Base Superalloy ◽  
Machined Surfaces

Morphology-based defect detection in machined surfaces with circular tool-mark patterns

Measurement ◽  
2019 ◽  
Vol 134 ◽  
pp. 209-217 ◽  
Author(s):  
Du-Ming Tsai ◽  
Daniel E. Rivera Molina
Keyword(s):  
Defect Detection ◽  
Tool Mark ◽  
Machined Surfaces

Quality Assessment of Machined Surfaces by an Optical Profilometer

2015 ◽  
Vol 669 ◽  
pp. 443-450
Author(s):  
Jana Gerková ◽  
Ľuboslav Straka
Keyword(s):  
Quality Assessment ◽  
Surface Quality ◽  
Production System ◽  
Head Movement ◽  
Movement Speed ◽  
Technological Parameters ◽  
Cutting Head ◽  
Optical Profilometer ◽  
Machined Surfaces

Technological parameters affecting the surface quality of cutting edges in production system with the AWJ technology include cutting head movement speed. The article examines and evaluates the quality of processed surface by the AWJ technology on selected materials as related to the change of cutting head movement speed. It was discovered that the movement speed for the AWJ technology has a significant effect on the surface quality

Relating Surface Roughness to Subsurface Stress

2005 ◽  
Author(s):  
A. Martini ◽  
S. B. Liu ◽  
B. Escoffier ◽  
Q. Wang
Keyword(s):  
Surface Roughness ◽  
Stress Field ◽  
Point Contact ◽  
Surface Characteristics ◽  
Operating Conditions ◽  
Surface Design ◽  
Dry Contact ◽  
Subsurface Stress ◽  
The Relationship ◽  
Machined Surfaces

Understanding and anticipating the effects of surface roughness on subsurface stress in the design phase can help ensure that performance and life requirements are satisfied. The specific approach taken in this work to address the goal of improved surface design is to relate surface characteristics of real, machined surfaces to subsurface stress fields for dry contact. This was done by digitizing machined surfaces, simulating point contact numerically, calculating the corresponding subsurface stress field, and then relating stress results back to the surface. The relationship between surface characteristics and subsurface stress is evaluated using several different approaches including analyses of trends identified through stress field visualization and extraction of statistical data. One such approach revealed a sharp transition between cases in which surface characteristics dominated the stress field and those in which bulk, or global contact effects dominated the stress. This transition point was found to be a function of the contact operating conditions, material properties, and most interestingly, the roughness of the surface.

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