Mechanical Finishing Clinic
Pat Wenino

Pat Wenino

Mechanical Finishing columnist Pat Wenino is a veteran of more than 30 years in the industry and author of the textbook Metal and Composite Finishing. He answers your questions on all things Mass and Mechanical finishing.

Got a question or comment for Pat? Send him an email.

The latest from the Mechanical Finishing Clinic

Pre-electropolish Surface Refinement with Coated Abrasives

Can you give us finishing guidance and a reference of what abrasive belt and disc grits will achieve a given Ra finish?

Ask an Expert Published: April 01, 2015

Basket Blasting Small Parts for Deburring and Pre-coat Finishing

We machine large quantities of small (0.5" × 0.25" × 0.25") steel alloy parts which have small feather burrs. The surfaces are hard to work for a good pre-coat finish, resulting in coating adhesion problems.

Ask an Expert Published: April 01, 2015

Mass Finishing to De-sharpen Extrusion Burrs

This part is sharp and we need to dull the edges for handling. What finishing process do you recommend?

Ask an Expert Published: April 01, 2015

Reducing Processing Steps for a High-luster Finish

Is there a process that can eliminate one of our cut steps and how do we get a little brighter microbrite finish?

Ask an Expert Published: February 01, 2015

Internal Cross Hole Deburring

We have three full-time deburring operators that are hand deburring aluminum aerospace machined parts with three and four-inch-deep cross holes. This is very difficult and time consuming work. Is there a reasonably priced deburring system that can help us?

Ask an Expert Published: February 01, 2015

Recirculation of Mass Finishing Process Solution

How can we recirculate our process fluid without discharging to drain?

Ask an Expert Published: February 01, 2015

Reducing Processing Steps for a High Luster Finish

Is there a process that can eliminate one of our cut steps and how do we get a little brighter microbrite finish?

Ask an Expert Published: January 19, 2015

Recirculation of Mass Finishing Process Solution

How can we recirculate our process fluid in our vibratory machine without discharging to drain?

Ask an Expert Published: January 19, 2015

Internal Cross Hole Deburring

Is there a reasonably priced deburring system that can handle four-inch deep cross holes in aluminum aerospace machined parts?

Ask an Expert Published: January 19, 2015

Multiple Finishing Processes in One Robotic Finishing Cell

How can a shop reduce costs when multiple part families require several finishing tasks?

Ask an Expert Published: October 01, 2014

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