Support structure for two-sided abrasive tool and the like and method of assembling same

摘要

A support structure such as a two-sided abrasive tool includes a first sheet with perforations having a front surface and a back surface and a second sheet with perforation having a front surface and a back surface. For an abrasive tool, a first layer of abrasive grains is bonded to the front surface of the first perforated sheet and a second layer of abrasive grains is bonded to the front surface of the second perforated sheet. Each perforation in the first sheet and the second sheet has a portion adjacent to the front surface of the sheet that is wider than a portion of the perforation that is adjacent to the back surface of the sheet. A core made of a first material is formed between the back surface of the first sheet and the back surface of the second sheet and within the perforations to anchor the first sheet and the second sheet to the core. Molded features may be disposed on the front surfaces of the sheets and integrally formed with the core through perforations in the sheets. The support structure may be used in a horizontal base or an end-of-arm tool.