461 Каталог GEDORE 2014 Профессиональный слесарный инструмент и оборудование Стр.459

Каталог GEDORE 2014 Слесарный инструмент Стр. 459 0461 ENG Lab2u

Manufacturing process of a 2-arm 1.06 puller J GEDORE In line with the requirement we hot-form the ideal steel for each puller sub-assembly. Cross-beam 1. Blank... from hard and tempered steel cut from the bar. 2. "Pre-upsetting"... Mighty hammer blows drop-forge the cut-to-length forging into the hot "pre-form". 3. Rough-forging... Powerful drop-hammer blows contour the cross-beam in the first die-sinking. 4.F inal forging... The cross-beam obtains its ultimate shape in the second die-sinking. 5. De-burring... Excess burr is removed under an eccentric press. 6. Forged blank... Ready for further processing and finishing. 7. Calibrating... The width of the leg guide is calibrated and sand-blasted. Important for the following operations. 8. Grinding... Grinding the cross-beam on all sides. 9. Milling the leg guide... The height of the leg guide is milled to size. 11. Cutting... The thread for the spindle is cut. 12. Zinc-plating... Electro-galvanized for corrosion protection. 13. Stamping... Manufacturer and Item No. are stamped on in a permanent fashion. 14. Lasering... The check-tool marking is lasered. Clamping parts 1. Blank made of hard and tempered steel and cut to size from the bar. 2. Upsetting... Mighty hammer blows drop-forge the cut-to-length forging into the hot "pre-form". 3. Rough-forging... Powerful drop-hammer blows contour the clamping parts in the first die-sinking. 4. Final forging... The clamping parts obtain their ultimate shape in the second die-sinking. 5. Hot de-burring... Still hot excess burr is removed under an eccentric press. 6. Forged blank... Ready for further processing and finishing. 7. Calibrating... The clamping part is calibrated and sand-blasted. . Perforating... The two holes for connection with the leg are cold-holed. 7 9. Zinc-plating... Electro-galvanizing protects the clamping part from corrosion. 10. Mounting... A pin and a screw and or the quick-release clamp are for connecting two clamping parts to the leg. 1. Blank made of 31CrV3 and cut to size from the bar. U i Cj 2. Forging... hot drop-forged. 3. De-burring... Excess burr is removed under an eccentric press. 4. Calibrating... The leg is calibrated and sandblasted. 5. Drilling... The holes for the clamps are drilled. 6. Milling... Milling provides the leg base with its optimum form. 7. Tempering... A special thermal treatment involving inert gas gives the leg its extreme hardness and toughness. Hardening ensures the required hardness and the annealing which follows imparts that toughness to the legs. Hardening and annealing together are referred to as tempering. 8. Sand-blasting... Sand-blasting is made use of to clean the surface before processing continues. .L 9. Zinc-plating... Electro-galvanizing protects the leg from corrosion. 10. Pressing-in... The connecting pin for the two clamping parts is pressed in. m Spindle 4. Nitro-carburating... Edge-layer hardening of the thread. 1. Blank from hard and tempered steel cut from The spindle is toughened at the edge and thus resistant the bar. to wear. The core remains "soft" and flexible and -C resiliently absorbs any stresses arising. 2. Turning + drilling... Turn the spindle to measure and the drill hole for the spindle tip is inserted. 5. Riveting... Either the firm spindle tip is permanently riveted or the replaceable spindle 3. Rolling... The fine thread is rolled. tip inserted. 459