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

Spindle Finishing for Heavy Burr Removal

What type of automated finishing machine do we need?

Ask an Expert Published: July 01, 2015

Dual Disc Flat Finishing for Maximum Radiusing

What type of finishing system do we need?

Ask an Expert Published: July 01, 2015

Mechanical Finishing for Uniform Anodized Finishes

How do we fix a not uniform anodized finish?

Ask an Expert Published: July 01, 2015

3D Printing Part Finishing

How do we finish rough 3D-printed systems?

Ask an Expert Published: July 01, 2015

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

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