123 Каталог GEDORE 2014 Профессиональный слесарный инструмент и оборудование Стр.121

Каталог GEDORE 2014 Слесарный инструмент Стр. 121 0123 ENG Lab2u

Schlusselknarre R-Serie GEDORE The production of a ratchet wrench From the tool blank to the final product Quality comes with existence - Step by Step "Made in Germany" (1) high-quality steel 31CrV3 ideal for hand tools Highly-efficient eccentric presses cut the blank for a ratchet wrench from high-quality flat steel. The coming shape powerful heads and slim shaft can even be recognised at this stage. (2) hot forging process In the forging furnace the blank is heated to the exact pre-selected temperature and enters the forge while still red hot. The steel is given its form in the die under the multi-ton blows of a drop hammer. Any excess steel at the sides is then de-burred. (3) machined The ratchet head is brought to the precise dimension in a CNC machining centre. (4) tempering A special thermal treatment involving inert gas provides the tool with its extreme hardness and toughness - indispensable for a particularly long service life. Hardening ensures the required hardness and the annealing which follows imparts that toughness to the ratchet wrench body. Hardening and annealing together are referred to as tempering. (5) precisely ground The jaws of the spanners are given their exact dimensions only after the hardening process. For this purpose a high-tech grinding robot has been developed especially for this operation. (6) smoothed in a kind-to-hands manner After grinding has produced a clean-cut burr-free outer surface for our ratchet wrench bodies any corners and edges still remaining are smoothed off by vibratory grinding until the head and shaft are likewise absolutely clean-cut and burr-free. The heads are additionally ground. This gives rise to GEDORE's kind-on-hands haptics. (7) extensively treated The extensive electroplating gives the spanners an effective surface protection and a perfect appearance. Nickel-plating provides the ratchet wrench body with optimal corrosion protection and the non-glare finish comes from high-grade matt chrome-plating. The production of a ratchet insert (8) high-quality steel brought precisely into shape High-quality GEDORE special hardened and tempered steel brought precisely into shape on the most up-to-date CNN machining centres. (9) unmistakable profile The unmistakable easy-on-bolts Unit Drive Profile (UD) is precisely reamed to size on highly-efficient reaming presses. Tempering is followed by the screw insert being manganese-phosphated. It protects from corrosion and lessens friction-induced wear. Merging " ISS 8 (10) marriage Ratchet wrench body screw insert cap and mechanisms are assembled. (Technicians traditionally refer to this as the marriage process.) This is accompanied at the same time by the functional check. Coming into play very much here is the knowledge and extensive track record of our staff. And ready is the GEDORE ratchet wrench - made by GEDORE - made in Germany 121