The Finished Part Blog

Polishing hardened tool steel to a low Ra value often requires more than one step and long cycle times. Ra is …

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Acrylic plastic is poly(methyl methacrylate) commonly known as plexiglass and commercially as Lucite and Plexiglas among others. When polished it can …

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Brass is relatively soft metal that oxidizes easily. Care needs to be taken to not damage the surface and to ensure …

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Tumble Blast systems remove hard to reach burrs, remove rust and scale, and prepare a surface for bonding while producing either bright …

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Tumbling Complex geometry parts The after picture of this highly polished part looks like the results were excellent in achieving a …

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3D Printed Titanium Polishing Additive manufacturing or more commonly, 3D printing, provides a significant challenge for surface finishing. These challenges revolve …

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Brass Parts Cleaning When soldering brass, the welded joint needs to be cleaned from excess flux and from discoloration of the …

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Polishing Acrylic Plastic This test had multiple objectives. When the part was made, it had sharp edges and a lightly scratched …

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Glass Media Differences Probably the most important aspect of any finishing project is deciding on the proper blasting media to use. …

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Surface Finishing Guide Surface finishing is a necessary step for more than just new products. Old, neglected items that need a …

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Heat Treated Tool Steel Polishing Steel is often heat-treated for a variety of reasons. Heat treatment involves heating the metal to …

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Cleaning Paint Plugs Paint plugs and masks are used in paint lines to protect areas of a part against being painted. …

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Cleaning Machined Aluminum Aluminum is a soft metal that is easily machined, and it tends to oxidize similarly to rust on …

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Hand deburring is commonly done with all types of part sizes and shapes and with many different types of materials. The copper part on the left has sharp edges and heat treat and welding discoloration. The manufacturer had been manually deburring and sanding this part to a clean, matte finish.

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Amidst the various types of finishing you can perform on a product, there is always the option to deburr a part by hand. The manual deburring process is a very time-consuming process but may be necessary for certain hard to reach areas in parts with complex geometry, and in instances where many different parts are being manufactured. Depending on your company and the parts you produce, manual deburring may be necessary, rather than the increasing use of a robotic process.

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These carbon steel parts had a blue coating on them that needed to be removed prior to polishing. Abrasive blasting was not an option as it could pit the metal and make it impossible to get a near mirror finish. Instead, a tumbling process was first used to remove the coating and then polish the part.

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At Kramer Industries, we are experts in all things related to surface finishing – including safety. Throughout any abrasive blasting process, safety should be your top priority. As you blast the surface of your project, dust and other contaminants will become airborne, increasing the risk for a potential inhalation hazard. To combat this problem, we highly recommend using an air-fed helmet.

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Traditionally, coal slags are used for stripping large boats, especially military ships. Recently, there has been a push to use more environmentally friendly abrasive media that are beryllium free. These alternatives need to be aggressive enough to remove 15 mils or more paint.

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Barrel finishing is a cost- and time-effective surface finishing process. The method is completed by tumbling parts in a rotating barrel, creating a rolling acting between the materials. Let’s take a look at how wet and dry barrel tumbling works.

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Additive manufacturing or 3D printing of plastic parts leaves a rough surface finish. The finish you see is the result of elevation lines used to print the part. This uneven surface is undesirable, especially for parts that need to have a pleasing aesthetic finish.

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When it comes to metal finishing, there are a few processes to choose from. In this blog, we’ve outlined the seven most common methods to finish your next metal project.

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These brass parts needed to be tumbled after machining to remove the burrs and discoloration on the surface. The challenge is removing the burrs on the slots without rolling them into the slot and making sure that the surface finish meets the specification.

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In the realm of surface finishing, there are a plethora of methods to choose from. From tumbling to blasting, Kramer Industries has the best solutions for finishing your next project. Isotropic finishing is a lesser-known method that could bring you the desired finishing results you’re looking to achieve.

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An aged or weathered look on stone tile is a popular finish. When a stone is cut it has sharp, ragged edges (see part on left). Creating an aged look involves rounding the edges and getting a uniform finish on the surface. This can be done by hand with a grinder and polisher, but that process is labor intensive and slow.

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In plastic manufacturing, a flawless surface finish is vital for performance. At Kramer Industries, we specialize in smooth plastic finishes that …

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