Abrasive Finishing & Abrasive Deburring
While our fine blanking, CNC machining and turning, and wire EDM processes can produce high precision, tight tolerance parts to match nearly any design requirements, those parts aren’t always perfect. Many times, our customers require a specific finish on their parts, or burrs created by the manufacturing process need to be removed. To that end, we offer a range of abrasive finishing and abrasive deburring services.
Abrasive Finishing (Micro Blasting)
Abrasive finishing (also known as Micro Blasting) is most often used to abrade a surface or to roughen it for better adhesion of glue or epoxies. Petersen Precision utilizes multiple abrasive finishing machines and finishing media to achieve a wide variety of finishes. For most projects, we use sodium bicarbonate or aluminum oxide, but many other media are available, as needed. We will work with you to determine which finishing process and media will work best for your purposes, based on the material from which your parts are made and the finish you require.
Our abrasive finishing processes can be performed manually or automated, depending on your project requirements. We can mask features or specific areas of your parts to protect them from abrasion and maintain the original surface finish.
Petersen Precision offers a variety of deburring processes to remove unwanted material from part edges and surfaces. The right deburring process for your parts will depend on their material of construction, their size, and how delicate their features are.
- We use a magnetic belt-driven sand and brush machine to remove burrs from fine blanked parts or to provide a specific surface finish on one or both faces of your parts
- Standard tumble deburring, using larger media in eccentric tubs, is ideal for processing larger parts
- Barrel-spin deburring, using smaller media, is preferred for smaller or more delicate parts
- CNC deburring or manual deburring are used for parts with unique geometries where other deburring methods would be ineffective or would damage small/delicate parts
- Spin Deburr is also used for those parts most sensitive to foreign materials or with very small features
For most projects, we use ceramic abrasive media, porcelain media, or stainless steel shot. However, a wide variety of deburring media are available, and we can modify our media “recipes” to meet your unique requirements.