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Home » Keywords » surface roughness

Items Tagged with 'surface roughness'

ARTICLES

Olympus white paper
Sponsored Content

White Paper: Introduction to Surface Roughness Measurement

October 30, 2020
No Comments

Olympus’ high-quality optics help eliminate many outliers before they occur. The quality of the resulting measurement is evident in multiscale analysis down to the finest scales.


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engine block

Hidden Waviness: When Measuring Roughness Cannot Solve Quality Challenges

Roughness and waviness are dictated by each particular application.
Mike Zecchino Mark Malburg Donald K. Cohen Ph.D.
June 1, 2020
3 Comments

Specifications for surface texture frequently focus on surface “roughness”—the finer structures in the texture—often to the exclusion of the “waviness”—the larger structure of the texture. Unfortunately, problems related to sealing, vibration, noise, wear, etc., are regularly caused by issues hidden in the waviness domain, which cannot be captured by common roughness specifications.


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roughness measurements

Choosing Sensors for your CMM

The goal of part inspection is to get results you can trust.
David Wick
July 1, 2019
One Comment

Sensors are an essential part of a metrology system, and there are several key factors that inform a buyer’s choice. These include ease of use, accuracy, speed and cost. Comparing the options can involve both analysis of features and actual demonstration of capabilities, but to get meaningful information for either you have to ask the right questions.


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surface inspection

Putting Surface Inspection in the Hands of the Machine Tool Operator

Manufacturers need tools for operators that meet test requirements and are simple to use.
George Schuetz
January 3, 2017
One Comment

As part tolerances tighten, both form and surface finish have a bigger influence on the size and function of the product. And with pressures on manufacturing to be more productive, it is no longer viable for checks of surface or form to be performed on a measuring system in a quality room.


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Figure 1. Asperities making plastic contact with flat, smooth, rigid, hard plate with  load (i.e. weight), W.

If you need less sliding friction, should you make the surface rougher or smoother?

Think quick!
Donald K. Cohen Ph.D.
January 3, 2017
No Comments

How does the surface texture affect the friction between two dry parallel sliding surfaces? It turns out that this problem has challenged some of the greatest minds in science and engineering.


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INDUSTRY HEADLINE

Michigan Metrology Announces Course and Teaching Aids to Further Surface Texture

February 9, 2015
One Comment

Donald Cohen, PhD will be leading a two-day, surface finish, friction and wear short course.


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jenoptik w10 mobile surface measuring system

Jenoptik W10 Mobile Surface Measuring System

September 16, 2013
No Comments

Light and compact, easy to operate with long-lasting battery power, the Jenoptik W10 mobile surface roughness measuring system brings the measurement lab to the shop floor.


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QLT-Default-Software.jpg

Software

August 26, 2013
No Comments

Mitutoyo introduced the new Surftest Probe and SurfPak-SP software allowing surface roughness analysis on a Mitutoyo CNC CMM and eliminating the need for workpiece changeover to a second measurement device.


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color matte glossy texture right
Measurement

Color vs. Appearance

With the number of color measurement instruments on the market, how do you choose the most appropriate one? It helps to understand the difference between measuring color and measuring appearance.
Gordon Leggett
June 4, 2013
No Comments

When white light strikes a surface, two different light interactions occur. Gloss or shininess is a geometric attribute related to the scattering of light off the first surface of the material.


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