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Mechanical Paste Polishing vs. CAVF Finishing of Gears

A Quick Review of CAVF Processing In CAVF, an HDNA media fills the vibratory unit. The high-density, non-abrasive media is...

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The Challenges of Generic Deburring vs. CAVF Deburring

CAVF allows use of HDNA media, which has a low attrition rate, keeping its shape and size much longer and...

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Changes Ahead in the Roughness Standards

The ISO Standards The four ISO standards listed above are part of a family of GPS (Geometrical Product Specifications) standards...

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Materials Matter : Roughness Measurement: Optical vs. Contact Stylus Profilometry

Figure 1: Typical Stylus Profilometer. (Courtesy: REM Surface Engineering) Optical profilometry uses light instead of a diamond tipped probe to...

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Rotorcraft Gearbox Regulations: LOL (not what you think)

Figure 1: Left, an as-manufactured gear; right, the failed gear due to LOL gear (Aviation Investigation Report A09A0016). During the...

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Materials Matter : Roughness Measurement Tips: Calibration, the Razor Blade Test

A profilometer used for measuring surface texture. (Courtesy: Shutterstock)   Figure 1: Mahr certification protocol (Courtesy: Mahr GmbH). Unless a...

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Roughness Measurement Tips: The Scratch Pad

The scratch pad Due to the increasing quality of engineered surfaces, roughness measurement capability developed greatly during the second half...

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Vibratory Media Compositions vs. Attrition and Density

WHAT IS ATTRITION RATE? Attrition rate is the rate at which media decomposes during the vibratory run. More abrasive media...

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Selecting media for optimum vibe bowl gear finishing

Aluminum oxide grit used in abrasive ceramic media. Finally, spherical media offers the least efficient contact pattern possible, contacting a...

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Materials Matter: How to Set Up a Vibratory Bowl for Gear Finishing

SETTING UP THE VIBE BOWL FOR OPTIMUM GEAR-FINISHING PERFORMANCE Amplitude is a commonly cited tool for gauging the correct machine...

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Physical Characteristics of the Vibratory Bowl and How They Affect Processing Efficiency

Durometer hardness is measured using durometer tester. [caption id="attachment_2593" align="alignleft" width="215"] Image of a durometer tester3[/caption] Activating a durometer tester...

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Measuring Tooth Flank Roughness

The wide capability range of available roughness measurement equipment. Poor roughness measurement equipment maintenance. Ambiguous roughness specification. Imprecise roughness measurement...

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