Customized Metal Finishing Solutions for Investment Castings
From the beginning of RP Abrasives, the finishing services for the investment casting industry have been an integral part of their portfolio. Whether removing the gate or bringing it to a mirror finish, RPA has a solution that’s right for the job. RPA can even passivate the actual part.
In the case of gate removal, RPA’s polishing services can not only remove the gate but also maintain all radiuses or contours of a part. This process can also be applied to investment cast parts that have been machined and need the machine lines removed. If the finish required calls for a much more refined surface finish, such as a measurable smoothness (Ra), or reflectivity (mirror), RPA has processes for that as well. Whether high energy tumbling, vibratory tumbling, or a combination of polish & tumbling, RPA can achieve a smooth and/or reflective (mirror) finish. If a brushed finish or satin finish is required, RPA can accommodate using our state-of-the-art buffing or bead blasting processes.
RPA passivates to ASTM 967 and/or AMS 2700 standards with our citric acid passivation process, including ASTM 380 cleaning step before passivation.
Work with RP Abrasives for Your Finishing Needs
That is the truly unique part of using RPA as your finishing experts. We have many different processes at our disposal and can combine any of them to reach the required finish specifications. So if you’re in the investment casting industry or a manufacturer or end user of investment castings, contact RPA today. We also provide free samples that we can then build a competitive quote.