surface roughness average

USAGE SUMMARY

The phrase "surface roughness average" is correct and usable in written English.
It is typically used in engineering and manufacturing contexts to describe the average roughness of a surface, often in relation to machining or material properties. Example: "The surface roughness average of the machined part must meet the specified tolerance to ensure proper fit and function."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

4 human-written examples

Table 1 shows the surface roughness (average roughness (Ra) and RMS roughness (Rq)) for the Pt film and PtNCs, respectively.

Nanoscale Research Letters

Open image in new window Fig. 2 Surface roughness average (Ra): the arithmetic mean roughness of all points from a plane (centre line) fitted to the test surface    .

Journal of Orthopaedics and Traumatology

In spite of above works, very few works are found in literature dealing with the optimal process parameter selection based on simultaneously minimization of tool vibration amplitudes during cutting as well as surface roughness average values of the workpiece.

Mechanics of Advanced Materials and Modern Processes

The tibial implant consisted of a modular titanium baseplate and cruciate stem with a grit-blasted titanium surface with a surface roughness average (Ra) of 6.8.

BioMed Research International

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

Examination of the morphology of our samples in obtaining surface roughness and average grain size showed that both surface roughness and average grain size increase with annealing temperature (see Tables 3 and 4).

Journal of Theoretical and Applied Physics

The surface roughness (arithmetic average roughness) of the parts is 0.0002 mm.

Precision Engineering

They explained that this apparent conflict could be resolved when the ratio of the average surface roughness to the average particle diameter was accounted for.

Nanoscale Research Letters

Surfaces with roughness average (Ra) value in the range of 0.1 1.6 μm are usually obtained by surface-finishing operation like grinding.

Mechanics of Advanced Materials and Modern Processes

A surface analyzer (Time TR200, Beijing, China) was calibrated at a sample length of 0.8 mm, 4.0 mm percussion of measure, and 0.5 mm/s and was used to measure the surface roughness (Ra-average roughness) of the resins.

BioMed Research International

Root mean square (rms) and average surface roughness as well as average grain size of the samples were obtained from the 2D AFM images using Nova and JMicroVision Codes, respectively.

Journal of Theoretical and Applied Physics

Surface roughness, pores and average particle size were analyzed by atomic force microscopy (AFM).

Applied Surface Science

Expert writing Tips

Best practice

When describing surface characteristics in technical reports, always specify the units of measurement (e.g., micrometers, nanometers) for the "surface roughness average" to ensure clarity and avoid ambiguity.

Common error

Avoid using "surface roughness average" (Ra) interchangeably with root mean square roughness (Rq). Rq is more sensitive to peaks and valleys, while Ra provides a general average. Use the appropriate parameter based on the specific surface characteristic you are trying to quantify.

Linguistic Context

The phrase "surface roughness average" functions as a noun phrase that identifies a specific measurement in surface metrology. It describes the arithmetic average of the absolute values of surface height deviations, as seen in the Ludwig examples.

Expression frequency: Uncommon

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Academia

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Ludwig's WRAP-UP

The term "surface roughness average" is a grammatically correct and technically precise noun phrase used to quantify the texture of a surface. As Ludwig AI confirms, it is primarily employed within scientific and engineering contexts. While not exceedingly common, the phrase is well-established in its field. Alternative phrasings, such as "mean surface roughness" or using the "Ra value", offer slight variations in emphasis or formality. It's crucial to specify units when using this term and to distinguish it from other roughness parameters like root mean square roughness (Rq).

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

average surface texture

Replaces "roughness" with "texture", emphasizing the overall surface characteristics.

mean surface roughness

Uses "mean" instead of "average", which is a synonymous term in this context.

arithmetic average roughness

Specifies the type of average calculation used, adding precision.

Ra value

Uses the abbreviation "Ra", a common shorthand for average surface roughness.

average height of roughness components

Describes the parameter more explicitly, focusing on the height deviations.

surface finish average

Substitutes "roughness" with "finish", highlighting the final state of the surface.

center line average roughness

Refers to a specific calculation method for average roughness.

root mean square roughness

Indicates a different statistical measure of surface roughness.

surface irregularity average

Replaces "roughness" with "irregularity", emphasizing deviations from a perfect surface.

texture depth average

Shifts focus to the depth of the surface features rather than roughness.

FAQs

What does "surface roughness average" (Ra) measure?

The "surface roughness average", often denoted as Ra, represents the arithmetic mean of the absolute values of the vertical deviations of a surface from its ideal form. It provides a general measure of the surface's texture.

How is "surface roughness average" typically measured?

The "surface roughness average" is commonly measured using a profilometer, which traces a stylus across the surface to quantify the height variations. Atomic force microscopy (AFM) is also used for nanoscale measurements.

What are some alternative ways to express "surface roughness average"?

You can use alternatives such as "mean surface roughness", "arithmetic average roughness", or simply refer to it as the "Ra value", depending on the context.

How does "surface roughness average" differ from root mean square roughness (Rq)?

While both are measures of surface roughness, "surface roughness average" (Ra) calculates the arithmetic average of the absolute deviations, whereas root mean square roughness (Rq) calculates the square root of the average of the squared deviations. Rq is more sensitive to extreme peaks and valleys.