isotropic superfinished surfaces Archives - Page 2 of 4

Case Study of ISO/TS 6336-22 Micropitting Calculation

Posted by Danny Estrada on Wednesday, May 5th, 2021 in

ISO/TS 6336-22 (Calculation of load capacity of spur and helical gears — Part 22: Calculation of micropitting load capacity) is the ISO technical specification containing a proposal for a calculation for the risk of micropitting in gear sets....

Advancing rocket propulsion through Additive Manufacturing, novel surface finishing technologies and public-private partnerships

Posted by Christina Michaud on Tuesday, December 1st, 2020 in

Whilst Additive Manufacturing is undoubtedly having a huge impact on the design and manufacture of rocket propulsion systems, most notably combustion chambers and nozzles, the Achilles’ heel of all AM process is currently as-built surface finish....

Mechanical Paste Polishing vs. CAVF Finishing of Gears

Posted by Danny Estrada on Monday, August 3rd, 2020 in

A recent Materials Matter article compared generic deburring versus CAVF (chemically accelerated vibratory finishing.) Both techniques are conducted in a vibratory unit....

Metal Finishing for 3D Printed Parts Webinar – Part 8 – LATTICE BRACELET

Posted by Danny Estrada on Tuesday, July 7th, 2020 in

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Metal Finishing for 3D Printed Parts Webinar – Part 5 – FINGER SPLINTS

Posted by Danny Estrada on Monday, July 6th, 2020 in

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Metal Finishing for 3D Printed Parts Webinar – Part 4 – PARACHUTE RINGS

Posted by Danny Estrada on Monday, July 6th, 2020 in

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Metal Finishing for 3D Parts Webinar – Part 3 – GEARS

Posted by Danny Estrada on Monday, July 6th, 2020 in

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Gear designers and manufacturers will need to review and update their tooth flank roughness specifications based on the new ISO 21920 GPS family of standards.

Changes Ahead in the Roughness Standards

Posted by Mark Michaud on Friday, May 15th, 2020 in

I have written numerous articles on tooth flank surface roughness measurement. This is such a page-turner of a subject!...

Metal Finishing for 3D Printed Parts Webinar – Part 6 – SHOCK ABSORBER PISTON

Posted by Danny Estrada on Monday, July 6th, 2020 in

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

Posted by Mark Michaud on Sunday, April 19th, 2020 in

Optical profilometry will become an important tool for predicting gear performance with more research and development of an objective lens to fit into tooth spaces....

Rotorcraft Gearbox Regulations: LOL (not what you think)

Posted by Mark Michaud on Monday, March 16th, 2020 in

The European Union’s CS-29 Amendment 7 places more stringent and rigorous testing requirements for certification of Category A type pressurized gearboxes under loss of lubrication conditions compared to the previous regulation....

Roughness Measurement Tips: The Scratch Pad

Posted by Mark Michaud on Thursday, January 16th, 2020 in

From the perspective of the shop floor environment, the previous Materials Matter column “Roughness Measurement Tips: 2 V 5” discussed the contact stylus 2-micron radius tip versus a 5-micron radius tip....