ASME B107.11:2002 pdf download
ASME B107.11:2002 pdf download.PLIERS: DIAGONAL IUTTINI AND END CUTTINE
5 REQUIREMENTS
5.1 Illustrations The illustrations shown herein are descriptive and not restrictive, and are not intended to preclude the manufacture of pliers that are otherwise in accordance with this Standard. All figures are shown without com- fort grips. 5.2 Materials The materials used in the manufacture of pliers shall be such as to produce pliers conforming to the require- ments specified herein. 5.3 Design Pliers shall be similar to the figure to which reference is made; shall be proportioned in all parts so as to be strong, durable, and easy to operate; and shall conform to the requirements specified herein. Test specimens shall withstand applicable test procedures without cracking or breaking. 5.4 Severed Wire Profiles Cutting edges shall be so designed as to produce one of the severed wire profiles illustrated in Table 1 using wire specified in para. 6.2.1. 5.5 Handles 5.5.1 Characteristics. Handles shall have a hardness from 35 HRC to 50 HRC or equivalent. Handles shall be so shaped as to provide a comfortable grip and shall be free from rough edges and sharp comers. Ends of handles shall not touch when the jaws are in a closed position. Outer hand gripping surfaces shall be smooth,knurled, impressed, or furnished with comfort grips. 5.5.2 Permanent Set. Permanent set of the handles for all types, except Type II, shall not exceed 0.04 in. (1.0 mm) when subjected to the handle load test specified in para. 6.4. Handles contacting each other during load testing shall constitute failure. 5.5.3 Comfort Grips. When comfort grips are fur- nished on handles, they ch& be made of rubber, plastic, or other suitable material capable of withstanding nor- mal use without deteriorating or rubbing off and shall pass the solvent resistance test specified in para. 6.5. Comfort grips shall remain permanently attached under normal use. WARNING: COMFORT GRIPS ON HANDLES ARE NOT INTENDED TO GIVE ANY DEGREE OF PROTECTION AGAINST ELECTRIC SHOCK AND SHALL NOT BE USED ON OR NEAR LIVE ELECTRIC CIRCUITS. 5.6 Joint 5.6.1 Construction. When pliers are opened or closed, there shall be no excessive sideways movement, play, or other indication of looseness that will affect their function. 5.6.2 Fastener Hardness. The fastener hardness s h d be from 25 HRC to 50 HRC except when the fastener receives a case hardening treatment in addition to the through hardening, a maximum hardness equivalent to 60 HRC shall be permitted.
5.7.2 Cutting Edge Hardness. Cutting edges shall have a hardness from 55 HRC to 65 HRC or equivalent. The balance of the jaw area shall have a minimum hard- ness of 35 HRC. 5.7.3 Cushion Grip Throat. Type I Class 3 pliers shali grip and retain cut wire end. The cushion grip throat shall be made of rubber, plastic, or other suitable mate- rial capable of withstanding normal use without deterio- rating or rubbing off and shall pass the solvent resistance test specified in para. 6.5. Cushion grip throat shall remain permanently attached under normal use. 5.8 Springs When a spring (or springs) is furnished, it shall be captive, durable, and capable of opening the jaws under normal use. The spring shall open the jaws to minimum jaw opening as specified in the applicable tables. 5.9 Finish 5.9.1 Appearance. Pliers shall have finished surfaces as indicated in Fig. 1. These surfaces shall have a maxi- mum surface roughness of 63 kin. (1.6 km), arithmetic average. Measurement of the finish shall be made with an instrument using a cutoff length of 0.03 in. (0.8 m) (refer to ACME B46.1). All other surfaces shall be free of pits, burrs, cracks, and other conditions that mayadversely affect the performance or appearance of the pliers. 5.9.2 Coating. All metal surfaces shall be coated to inhibit rust. Coatings shall be adherent, smooth, and continuous, and free from pits, blisters, nodules, and any other conditions that would interfere with their pro- tective value and serviceability.
