ASME B107.410:2018 pdf free download

ASME B107.410:2018 pdf free download.Struck Tools.
There shall be nochipping, cracking, orspalling of either the cutting edgeorthe struck face,or cracking orbending ofthechisel. There shall be no deterioration of the handle.Normal deformation at either end is permitted.23
6.2.3 Category 44Types l and iV Chisels. The chisel shall be mounted vertically with the cutting edge resting on asteel bar.The chisel shall be retained in a vertical position with a snug-itting fixture permitting unrestricted verticalmovement in response to the impact of the drop weight on the chisel struck face.The bar shall have a minimum thicknessof0.75 in.and a width of at least 0.25 in.greater than the width of the chisel-cutting edges.The bar shall be mild steel(UNSG10180-G10300) and have a uniform hardness of 80 HRB to 85 HRB.The bar shall rest on a solid foundation, such as asteel block, weighing 20 lb or greater.A 5-lb cylindrical weight with a striking face hardness of 45 HRC to 60HRC shall bedropped 20 times (through seamless tubingslightly larger than the diameter ofthe weight)from a height of 10 in.onto thechisel struckface.The diameter of the striking face of the weight shall not be less than 0.375 in.larger than the struck faceof the chisel. The test bar shall be moved after each drop of the weight to make a new impression.There shall be nochipping, cracking. or dulling of the cutting edge; no mushrooming or chipping of the struck face; and no bending of thechisel. Normal deformation at either end is permitted.
7.1 Safety Requirements
(a) Instructors and employers shall stress proper use and safety in the use of struck tools; they shall emphasize theneed to wear and ensure the use of safety goggles.The publication Guide to Hand Tools—Selection, Safety Tips,ProperUse and Care provides guidelines for the safe use of these tools.
(b) To avoid possible eye injury from flying objects, safety goggies or equivalent eye protection conforming to ANSI/ISEA Z87.1 shall be worn by the user and all persons in the inmediate area where any struck tool is being used.(c) Struck tools shall be free of nonfunctional sharp edges, points, and surface roughness that could inflict personalinjury on the user when handling the tool.They shall be free of manufacturing and material defects,such as seams, laps,pipes,or cold shuts,that would jeopardize sound construction and beessentially free from pits, nodules,burrs, cracks, andother conditions that would adversely affect the performance or safety of the tool.
7.1.1 Inspection
(a) Struck tools shall be inspected prior to each use and their use discontinued at the first sign of bending mush-rooming,chipping, or cracking of any portion of the body, struck face, or cutting edge.
(b)Handles shall be inspected prior to each use, and those damaged shall be replaced.The handles of tools shall be freeof splinters or cracks and kept tight in the tool.Replacements shall withstand applicable tests and be equivalent to theoriginal handle in size and quality.