Motif combination — a new approach to surface profile analysis

Wear ◽  
1982 ◽  
Vol 83 (1) ◽  
pp. 165-179 ◽  
Author(s):  
C.F. Fahl
Keyword(s):  
Profile Analysis ◽  
Surface Profile ◽  
New Approach ◽  
Motif Combination

scholarly journals New Approach for Improvement of Secondary Ion Mass Spectrometry Profile Analysis

2007 ◽  
Vol 46 (11) ◽  
pp. 7441-7445 ◽  
Author(s):  
M'hamed Boulakroune ◽  
Ahmed El Oualkadi ◽  
Djamel Benatia ◽  
Tahar Kezai
Keyword(s):  
Mass Spectrometry ◽  
Secondary Ion Mass Spectrometry ◽  
Profile Analysis ◽  
New Approach ◽  
Ion Mass Spectrometry ◽  
Mass Spectrometry Profile ◽  
Secondary Ion

Surface Profile Analysis for Conformable Interfaces

2003 ◽  
Vol 125 (3) ◽  
pp. 624-627 ◽  
Author(s):  
Mark C. Malburg
Keyword(s):  
Contact Area ◽  
Load Distribution ◽  
Profile Analysis ◽  
Surface Profile ◽  
Solid Surfaces ◽  
Analysis Method ◽  
Uniform Load ◽  
Morphological Filtering ◽  
Novel Method

This paper presents a novel method for the analysis of solid surfaces in contact with a conformable component. These applications are common in many engine and hydraulic applications, wherein conformable seals, gaskets, bushings, etc. are employed to prevent unwanted flow across an interface or provide a uniform load distribution. The proposed analysis method employs a combination of meanline (m-system) filtering and envelope (e-system) or morphological filtering. Through this analysis, a simulation of contact area and the associated voids or gaps can be assessed.

Wavelet Transforms in Fractal-Based Form Tolerancing

1993 ◽  
Author(s):  
R. S. Srinivasan ◽  
Kristin L. Wood
Keyword(s):  
Wavelet Transforms ◽  
Design Research ◽  
Profile Analysis ◽  
Synthesis Method ◽  
Surface Profile ◽  
Synthesis Methods ◽  
Geometric Tolerancing ◽  
Analysis And Synthesis ◽  
Cost Implications ◽  
Profile Reconstruction

Abstract Tolerancing is a crucial problem for mechanical designers, as it has quality and cost implications on product design. Research in tolerancing has addressed specific areas of the problem. Building upon previous research, a unified approach for geometric tolerancing with fractal-based parameters has been recently proposed. This paper explores an alternative error profile analysis and synthesis method, based on wavelets, that maintains and extends the use of fractals for surface error abstraction. An overview of the theory of wavelets is provided, and the link between fractals and wavelets is established. Experimental data are used to illustrate the application of wavelet theory to surface profile reconstruction and synthesis. The synthesis methods are then implemented in the design of ball-bearing elements, demonstrating the utility of fractal-based tolerancing. Plans for further study and implementation conclude the paper.

Surface Profile Analysis in Milling with Structured Tool

2019 ◽  
Vol 13 (1) ◽  
pp. 101-108 ◽  
Author(s):  
Fumihiro Uchiyama ◽  
Akihiko Tsuboi ◽  
Takashi Matsumura ◽  
◽  
◽  
...  
Keyword(s):  
Profile Analysis ◽  
Surface Profile ◽  
Polycrystalline Diamond ◽  
Cutting Parameters ◽  
Processing Parameters ◽  
Micro Scale ◽  
Surface Finishes ◽  
Optimum Cutting ◽  
End Mills ◽  
Surface Profiles

Novel end mills with micro-scale structures have recently been developed to promote cutting performances with cutting forces, chip controls, and tool wears. However, the surface profiles are formed corresponding to the structures on the tool edges. The surface finishes, therefore, are worse than those of cuttings with straight edges of the end mills. This paper discusses surface profiles in milling with the structured tool and the cutter axis inclination. An analytical model is presented to simulate the surface profiles for the tool edge shape, the cutting parameters and the cutter axis inclination. Because the surface profiles are controlled in the simulation, the optimum cutting parameters are determined to reduce the surface roughness. Micro-scale nicks were fabricated on polycrystalline diamond edges with a laser machine tool. The sizes and pitches of the nicks were controlled by the laser processing parameters. The cutting tests were conducted to measure the surface profiles. The presented surface profile model was validated by comparing the simulated and the measured surface roughnesses. The surface finish can be improved in milling with the cutter axis inclination in the optimum cutting parameters.

scholarly journals Three-dimensional Surface Profile Analysis of Different Types of Flowable Restorative Resins Following Different Finishing Protocols

2007 ◽  
Vol 8 (5) ◽  
pp. 9-17 ◽  
Author(s):  
A. Rüya Yazici ◽  
Gerard Kugel ◽  
Ali Müftü
Keyword(s):  
Surface Roughness ◽  
Aluminum Oxide ◽  
Profile Analysis ◽  
Three Dimensional ◽  
Surface Profile ◽  
Group Iii ◽  
Group I ◽  
Different Types ◽  
Post Hoc ◽  
Dimensional Surface

Abstract Aim The aim of this study was to investigate the surface roughness of different types of flowable restorative resins and compare the effectiveness of diamond finishing burs followed by aluminum oxide discs with aluminum oxide discs alone in producing smooth surfaces. Methods and Materials Twenty-four specimens (10 mm X 2 mm) for each flowable resin (flowable microhybrid composite, flowable liquid microhybrid composite, flowable compomer, and flowable ormocer) were fabricated in an acrylic mold and randomly assigned to three groups. In group I samples were left undisturbed after the removal of a Mylar strip (control). In group II samples were polished with diamond finishing burs, followed by aluminum oxide discs. In group III samples were finished with only aluminum oxide discs. The mean surface roughness (Ra, μm) was determined with 3-D non-contact interferometry. Data were subjected to one way analysis of variance (ANOVA), and post hoc comparison was accomplished using Tukey's HSD. Results Although significant differences in surface roughness (Ra) values were observed among the materials using a Mylar strip (control), no significant differences between restorative materials were found when all finishing/polishing methods were combined. For all flowable restorative resins tested, the Mylar strip produced surfaces smoother than those produced by a diamond finishing bur followed by a disc or by using discs alone. Surface roughness values were statistically similar for a diamond finishing bur followed by a disc and for disc treated surfaces within each material except for Dyract Flow, a flowable compomer. Conclusion Although the surface roughness of flowable restorative resins differs among the types, this difference can be overcome with different finishing/polishing methods. Citation Yazici AR, Müftü A, Kugel G. Three-dimensional Surface Profile Analysis of Different Types of Flowable Restorative Resins Following Different Finishing Protocols. J Contemp Dent Pract 2007 July;(8)5:009-017.

scholarly journals Realization of depth reference samples with surfaces amplitudes between 0.1 nm and 5 nm

2019 ◽  
Vol 215 ◽  
pp. 03004
Author(s):  
Annemarie Finzel ◽  
Gregor Dornberg ◽  
Stephan Görsch ◽  
Martin Mitzschke ◽  
Jens Bauer ◽  
...  
Keyword(s):  
Ion Beam ◽  
Surface Profile ◽  
Ion Beam Etching ◽  
New Approach ◽  
Surface Profiles ◽  
Transparent Materials ◽  
Sinusoidal Surface ◽  
Reference Samples ◽  
Reactive Ion Beam Etching

A new approach for the realization of depth reference samples is presented. By a combination of photolithography, reactive ion beam etching, surface planarization with photoresists and a subsequent coating with non-transparent materials, defined sinusoidal surface profiles are generated which can be used as depth references for the comparison and calibration of different surface profile measurements. The smallest realized surface amplitudes are in the range of less than 0.1 nm.

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