Influence of Chuck Design on Spin-out Torque in Softwood Veneer Peeling BlocksU.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1982 - Torque - 14 pages |
Common terms and phrases
4-1/2-inch-diameter blocks angular acceleration AVERAGE MAXIMUM TORQUE basswood BLOCK NUMBER Figure block temperature blocks per chuck chuck design chuck diameter chuck was tested chucks are retracted chucks are withdrawn chucks tested Chucks with relatively depth of penetration depth of spur experimental chuck factors fifth chuck four chucks higher average torque hydraulic cylinder initial spin-out inner chuck large-diameter lathe settings likelihood of spin-out load cell log heating Lutz and Patzer maximum spin-out torque maximum torque developed Maximum torque increased optimum outer chucks oversize cores percent pine and Douglas-fir Powered Back-Up Roll pressure bar relatively slender spurs required to cut required torque roller bar rolling shear failure shear area shear strength shear stress specific gravity spin-out occurs spin-out problem spin-out rate Spur Penetration Depth spur profile areas steam-heated nosebar strength tangential component torque before spinning torque for four torque required torque values transmitting torque veneer being cut white fir