Q122 What is Roughness? Answer the question by relating it to the following topics: Tribology Roughness measuring system Importance of surface finish ABNT NBR 8004 Standard (based on ISO 1302) Roughness Quantification: ABNT NBR ISO 4287(2002)

Q122 What is Roughness? Answer the question by relating it to the following topics: Tribology Roughness measuring system Importance of surface finish ABNT NBR 8004 Standard (based on ISO 1302) Roughness Quantification: ABNT NBR ISO 4287(2002)

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter2: Measurement, Materials, And Safety

Section2.5: Quality Assurance, Process Planning, And Quality Control

Problem 5RQ: What is the important factor to consider when choosing the proper measuring tool to inspect a...

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Question

Q122

What is Roughness?

Answer the question by relating it to the following topics:

Tribology
Roughness measuring system
Importance of surface finish
ABNT NBR 8004 Standard (based on ISO 1302)
Roughness Quantification: ABNT NBR ISO 4287(2002)

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R₂ (Ten-point surface roughness) The and valleys mean #Waviness? error * Lay: of distance b/us five consecutive sampling length. over a It vitlat relates to texture сероп roughness is superimposed. It is mainly caused because of the deflection b/w too and workpiece. It refers to irregularities which are outside the roughnes cut-off values Form: It is a feature of the surface which is caused by thermal distortion (deflection or compressibility of a material under temperature and pressure float) of tool & workpica in slide and сосу > Yield strength macro الامتحن elastic to strength, yield It is the DATE PAGE wear and 4+ represents the direction of predominant surface pattern produced it reflecto the machining operation used to produce it. The magnitude of stress at from peaks maximum which of stress at which the transition plastic occurs is known as limit of elastic behaviour. > Toughness: A material's ability to absorb energy and deform (elastically & plastically) without fracturing.
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