Cross-Grain Knife Planing Hard Maple Produces High-Quality Surfaces and Flakes

Hard maple panels of short, clear cuttings were aligned parallel and perpendicular to the feed direction so the material could be knife-planed parallel to and across the grain. The panels were planed at 36 prescribed machining combinations of four rake angles (10, 20, 30, and 45 degrees), three depths of cut (1/32, 1/16, and 1/8 inch), and three feed rates to give 10, 20, and 30 knife marks per inch. Maximum surface roughness was less for planing cross grain than for planing parallel to the grain, but average surface roughness was about the same for planing cross grain and parallel to the grain. Further, a high-quality flake could be manufactured simultaneously with a finish knife-planed surface when planing cross. grain. Thus, waste disposal problems, such as burning, could be reduced and flake for particleboard produced.

You must be logged in to download any documents. Please login (login accounts are free) or learn how to Become a Member