Production tool to make abrasive particles with grooves
Abrasive particles comprising shaped abrasive particles each having a sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a sidewall and having a maximum thickness, T; and the shaped abrasive particles further comprising a plurality of grooves on the second face.
1. A production tooling for making shaped abrasive particles comprising a plurality of mold cavities, the plurality of mold cavities comprising a mold bottom surface, a mold sidewall, and a height, Hc;
the entire tooling being made of a polymer;
wherein the mold bottom surface comprises a plurality of ridges, and
comprising a draft angle a between the mold bottom surface and the mold sidewall and the draft angle α is between 95 degrees to about 130 degrees.
2. The production tooling of claim 1 wherein the plurality of ridges comprise parallel lines.
3. The production tooling of claim 1 wherein the plurality of ridges extend completely across the mold bottom surface and intersect with the mold sidewall at a 90 degree angle.
4. The production tooling of claims 1 , 2 , or 3 wherein the cross sectional geometry of the plurality of ridges comprises a triangle or a truncated triangle.
5. The production tooling of claims 1 , 2 , or 3 wherein the plurality of ridges comprises a percent spacing and the percent spacing is between about 1% to about 50%.
6. The production tooling of claims 1 , 2 , or 3 wherein each of the plurality of ridges comprises a height, Hr, and the plurality of mold cavities comprises a height, Hc, and a percentage ratio of Hr/Hc is between about 0.1% to about 30%.
7. The production tooling of claims 1 , 2 , or 3 wherein a perimeter of the mold bottom surface comprises an equilateral triangle.
8. The production tooling of claim 1 wherein the plurality of ridges comprises a cross hatch pattern of intersecting lines.
9. The production tooling of claim 1 wherein the polymer is a thermoplastic.