• Contact:  D. A. Davidson | |509.230.6821
  • For many decades there has been an awareness of cutting tool edge condition and tool surface finish and the effect it has on piece part quality and tool life. There have been many independent studies, tests, and implementations of edge conditioning methods to create extended life in turning, drilling, and milling cutter tooling – some published but most kept “secret” as a manufacturing advantage.  — Jack Clark, Surface Analytics LLC and Colorado State University

    The “Deburr/Finish Tech Group” of the SME has tasked itself to manage the project and use it’s member resource pool to provide tooling, applications, and the necessary documentation and reporting to objectively test cutting tool edge radius improvement on tool life and piece part consistency. This is a proposed outline on how to organize and conduct such a test.  It is the intention of the participants to publish a document, possibly an SME Technical paper or article, at the conclusion of the study.
  • To see an example of some superfinishing equipment being used for the research project see: GOALS: Confirm that edge and finish conditioning improves tooling life and potentially also improves performance values in tool speed, feed speed and substrate surface finish and helps prevent part surface finish deterioration from tool wear over extended periods of time.
  • CBF - Carbide tool surface treatment
  • See below an operational video of a machine that can be used for edge prep and isotropic surfacing of tooling

See also below further part application photos by Mark Riley, BV Products and Dave Davidson, SME MMR Tech Community Network

This slideshow requires JavaScript.

This slideshow requires JavaScript.

Further reading:  Internet resources

(1)  “Isotropic Mass Finishing for Surface Integrity and Part Performance”,  Article From: Products Finishing, Jack Clark, from Surface Analytics, LLC and David Davidson, from SME Deburr/Finish Technical Group, Posted on: 1/1/2015, [Barrel, vibratory, centrifugal and spindle finish can improve part performance and service life.]

(2)  “Turbo-Charged Abrasive Machining Offers Uniformity, Consistency”  Article From: Products Finishing, by: Dr. Michael Massarsky, President from Turbo-Finish Corporation, and David A. Davidson, from SME Deburr/Finish Technical Group.  Posted on: 6/1/2012.  [Method can deburr, produce edge contour effects rapidly]

(3)  “Turbo-Abrasive Machining and Finishing”. MANUFACTURING ENGINEERING – Aerospace Supplement, by: Dr. Michael Massarsky, President from Turbo-Finish Corporation, and David A. Davidson, from SME Deburr/Finish Technical Group. [Method first developed for the aerospace industry can improve surface integrity and part performance]

(4)  “The Role of Surface Finish in Improving Part Performnce”, MANUFACTURING ENGINEERING, by Jack Clark, Surface and David A. Davidson, from SME Deburr/Finish Technical Group.

(5)  “Free Abrasives Flow for Automated Finishing”, MANUFACTURING ENGINEERING, , by: Dr. Michael Massarsky, President from Turbo-Finish Corporation, and David A. Davidson, from SME Deburr/Finish Technical Group. [Exciting new methods of surface finishing that go beyond deburring to specific isotropic surface finishes that can increase service life]

(6) Turbo-Abrasive Machining Demonstration Video:

(7) SME Spokane, WA Factory Floor video, Centrifugal Finishing in the Precision Machine Shop: Demonstration)


AUTHOR BIOGRAPHY –  David A. Davidson, []

Mr. Davidson is a deburring/surface finishing specialist and consultant.  He has contributed technical articles to Metal Finishing and other technical and trade publications and is the author of the Mass Finishing section in the current Metal Finishing Guidebook and Directory.  He has also written and lectured extensively for the Society  of Manufacturing Engineers, Society of Plastics Engineers, American Electroplaters and Surface Finishers Association and the Mass Finishing Job Shops Association.  Mr. Davidson’s specialty is finishing process and finishing product development.


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