MICROSTRUCTURE ARRANGEMENT FOR GRIPPING LOW COEFFICIENT OF FRICTION MATERIALS

• Main Authors: Hulseman, Ralph A, McPherson, Cameron L, Ravikumar, Nakul
• Format: Patent
• Language: English
• Published: 25.03.2021
• Subjects: CASTING; CHAMBERS PROVIDED WITH MANIPULATION DEVICES; HAND TOOLS; MAKING METALLIC POWDER; MANIPULATORS; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; POWDER METALLURGY; TRANSPORTING; WORKING METALLIC POWDER

A microstructure arrangement having a substrate; a first set of pillars having a cross section area in the range of 10 μm2 to 400 μm2 and a pitch in the range of 20 μm to 1000 μm; a second set of pillars disposed on said first set of pillars having a cross section area less than that of the pillars in said first set of pillars; wherein said second set of pillars are defined by pillars each having a cross section width from 0.5 μm to 100 μm and a pitch in the range of 1 μm to 200 μm; and, wherein said first and second set of pillars are configured to cooperate to have a physical property of a grip force in excess of 50.0N with a contact area of 25% or less, as determined by the friction testing method.