Blanchard Grinding, technically referred to as Rotary Surface Grinding, quickly removes stock from one side of a part…typically a part too large to be Double-Disc Ground is Blanchard ground. Parts as large as 48″ × 84″ or 60″ × 72″ can be Blanchard Ground on our largest machine. Dimensional tolerances to ± .001", parallelism to .001", and flatness to .001" are achievable on all our Blanchard Grinders. Using significantly greater horsepower than other grinding methods, Blanchard Grinding removes large amounts of stock quickly and efficiently.
Blanchard Grinding is ideal for large parts such as rotary tables, mold plates, and vacuum chambers, Blanchard Grinding adds size versatility, eliminates mis-matches, and speeds turnaround time on large parts when compared to flycutting. This method provides a considerable time savings over surface grinding as well. Using proprietary TCI vacuum chucks, even thin, hard to hold configurations can be Blanchard Ground. Unlike most Blanchard Grinding operations, which furnish surface finishes to 150 Ra and higher, TCI is able to provide Blanchard Ground parts with surface finishes to 16 Ra.
Premachining costs and turnaround time can be reduced by simultaneously Blanchard Grinding multiple parts. Multiple part grinding, along with cutting a large, Blanchard Ground blank into smaller parts, provides uniform part-to-part thickness tolerances and surface finishes at a lower unit cost.
6 Blanchard grinders are in operation to grind sheet and plate as large as 48″ × 84″ or 60″ × 72″.