Through our metal sandblasting services, we are highly successful in delivering the surface finish required for specific applications. Using different types of grit and varying the time and other factors, we are able to achieve the particular finish you need, from rough to very, very rough (from 32 Ra roughness and higher).
The sandblasting process may be used to prepare a metal surface for adhesion, bonding, insert molding, painting, or other coating operations or to achieve a particular surface texture, such as a matte finish rather than a smooth, shiny appearance. Sandblasting can also be used for removal of burrs or edge profiling on machined components, or to remove rust, scale, or paint from fabricated components.
Our expertise in the sandblasting of small metal parts is typically requested to provide a specified, enhanced level of adhesion — for example, to prepare a metal tube that will be used for plastic injection molding.
Our Metal Sandblasting Services Advantages
Sandblasting roughens up the surface of the material, expanding the surface area of the material surface and, in fact, creating a slightly larger diameter (in tenths of an inch or microns) in the treated areas as compared with the surrounding area. This characteristic of sandblasting makes the ability to precisely target a metal part’s specific treatment areas vitally important to achieving the desired surface modification results.
For the differential sandblasting of parts, our metal sandblasting services excel at precision linear location of treated and non-treated (or polished) features. That is because we do our own fixturing and masking. We hold the parts in fixtures we design and build ourselves in-house, enabling us to mask any sections of the parts not to be sandblasted — and to accurately and effectively treat just those areas that need to be roughened.
Our Secret to Sandblasting Success
As a process of propelling grit through a blasting nozzle by means of compressed air to target the treatment areas, sandblasting (sometimes called grit blasting) can use a wide range of abrasive grit, from shot peening to sand, depending on the surface treatment that your product requires.
At Metal Cutting, our secret is that we don’t, in fact, use sand. Our metal sandblasting services utilize only performance-engineered abrasive particles that are precision-sized and made of elemental compositions that we vary to produce specific results. We are experts in choosing the proper abrasive grit, with the correct hardness, shape, density, and particle size needed to achieve the results you need for your application. As a high-tech provider, especially to the medical device industry, we do not utilize (or even have on our premises) copper slag or any other material that is unacceptable for use on such devices.
We also are experts in utilizing different nozzle powers and shapes, which affects acceleration as the grit exits the nozzle and has an impact on the force that is applied to the parts. Our metal sandblasting services provide the highest levels of process management and finesse, to reliably execute surface finish modification with the resolution, repeatability, and accuracy demanded by the most demanding applications.