One of most sophisticated three-axis, numerically controlled, tape-operated machines built for International Harvester by Beatty Machine and Mfg Co, incorporates both mechanical and hydraulic means of piercing side rails, and is capable of piercing four complete sets of left and right frame rails or reinforcements hourly; heavy-duty truck frame rails can be pierced with hole location accuracy to within 0.005 in. with respect to related patterns of holes within about 3 ft increments and within 0.025 in. over entire length of rails; heart of new system is guillotine-type punch press with 200-ton ram capacity for piercing web of rails; horizontal hydraulically-operated punches with 50-ton capacity are used to pierce flanges of rails.
Piercing truck frames by tape
Iron Age
Iron Age ; 199 , n 5
1967
Article (Journal)
English
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