Abrasive pad and method for abrading glass, ceramic, and metal materials

Patent metadata

Field	Value
Publication number	US-9415480-B2
Application number	US-201314413330-A
Country	US
Kind code	B2
Filing date	Jul 8, 2013
Priority date	Jul 13, 2012
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

An abrasive pad used to abrade the surfaces of glass, ceramic, and metal materials, the abrasive pad being provided with a substrate layer, and an abrasive layer provided on a first surface side of the substrate layer and including an abrasive material, and the abrasive layer having a plurality of base portions arranged mutually separated on the substrate layer, columnar or frustum shaped tip portions arranged mutually separated on the base portions, and a group of grooves containing a plurality of groove portions provided between base portions such that the substrate layer is exposed, with each of the grooves mutually intersecting.

First claim

What is claimed is:

1. An abrasive pad used to abrade the surfaces of glass, ceramic, and metal materials; the abrasive pad comprising:
a substrate layer; and
an abrasive layer provided on a first surface side of the substrate layer and comprising an abrasive material;
and the abrasive layer comprising:
a plurality of base portions arranged mutually separated on the substrate layer;
columnar or frustum shaped tip portions arranged mutually separated on the base portions; and
a group of grooves containing a plurality of groove portions provided between base portions such that the substrate layer is exposed, with each of the grooves mutually intersecting.

2. The abrasive pad according to claim 1 , wherein a surface area of a top face of the base portion is from 30 mm 2 to 400 mm 2 .

3. The abrasive pad according to claim 1 , wherein a bottom portion of the groove portions between the tip portions forms a tapered shape on the base portion.

4. The abrasive pad according to claim 1 , wherein a bottom portion of the groove portions between the base portions forms a tapered shape on the substrate layer.

5. The abrasive pad according to claim 1 , wherein the substrate layer is formed of a material having flexibility.

6. The abrasive pad according to claim 1 , wherein a layer having flexibility is provided on a second surface side of the substrate layer.

7. The abrasive pad according to claim 1 , wherein, an aspect ratio of the tip portions is from 0.2 to 10.

8. A method for abrading glass, ceramic, and metal materials using an abrasive pad according to claim 1 ;
the abrading method comprising a process of securing the second surface side of the substrate layer on a platen, bringing the abrasive layer and object for abrasion into contact, and then relatively rubbing the abrasive pad and a grinding fluid against the object for abrasion, while introducing the grinding fluid between the object for abrasion and the abrasive layer.

Assignees

• 3M Innovative Properties Co

Inventors

• Aoki Toru
• Yoda Akira
• Tachihara Takayuki

Classifications

• B24B37/26 Primary

  characterised by the shape of the lapping pad surface, e.g. grooved · CPC title

• B24D11/00

  Constructional features of flexible abrasive materials; Special features in the manufacture of such materials · CPC title

• B24B7/24

  for grinding or polishing glass · CPC title

• B24B37/245 Primary

  Pads with fixed abrasives · CPC title

• B24B37/22

  characterised by a multi-layered structure · CPC title