[Case Study] How to Represent Blasting Processing in Drawings

By describing and indicating surface roughness measurement parameters such as Ra, Ry, Rz, and S, quality is stabilized!

Although there is blasting equipment within the company, there are challenges such as "we performed the blasting process as stated in the drawings, but it resulted in complaints." When SB100 is indicated on the drawings, it is generally correct to assume it refers to sandblasting 100, but the finish can vary significantly depending on the machine specifications and processing methods. While it is necessary to confirm before processing, it is also important to change the descriptions and instructions on the drawings to focus on stabilizing quality. As professionals, we can sort materials in the subsequent processes, but with SB100, the material of the abrasive cannot be determined. For example, by specifying and indicating surface roughness measurement parameters such as SB100 (A Random), Ra, Ry, Rz, and S, quality can be stabilized. [Issues] ■ We performed the blasting process as stated in the drawings, but it resulted in complaints. ■ In the case of blasting, how should it be described and instructed on the drawings? *For more details, please refer to the PDF document or feel free to contact us.

Processing Contract