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 Wysłany: Pią 2:13, 07 Sty 2011 Temat postu: ugg italia Correction of multi-curved shape forgin |
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Correction of multi-curved shape forging process
If the left and right steering knuckles, front brake arm and other parts. 130 cars are to the left steering knuckle down,[link widoczny dla zalogowanych], indicating that the correction mode Bending bending process on. 1 Selection process scheme 130 cars left steering knuckle is characterized by a multi-directional bending, is typical of complex parts and products according to their complex structure of factors to select a reasonable allowances and tolerances, and design of cold forging Figure D (circle 1 .) 】 Solid pieces of the left steering arm tweezers solid curved section of the more left-turn, there are horizontal and vertical directions, and the larger gap. If the end of the last final forging die forging has the following difficulties: (1) As the gap between large, completely on the wrong shift yan debit guarantee, if the lock wear the wrong model is inevitable, Park, this is not easy to ensure the quality forgings. (2) and trimming the final forging die mold processing complex, increasing the difficulty of processing, extended processing cycle. (3) mold material waste nearly l / 3. To avoid the above drawbacks, I had taken l 『correction mode in the pressure forming technology on the way, that is correct at the same time, the forging bending. The process is; heat a final forging (including stretching, pressing the left steering arm Figure 2 hot sulfuric acid components prince Yu bend, eventually forging) and complete all the bending of the horizontal edge of a correction and complete vertical bending. Click here to process plan, the design of the forging of the hot forging (Figure 2). Technology plan was finalized, the final forging die and the bending groove is designed to outline the direction of shaping and bending of the level of the key. Furnace under the operating habits and incoming direction, the left-groove based stretching and bending groove, and finally forging hammer rod groove in the center line, Figure 3. 130 cars left steering knuckle is about the unfolding length 550mm , calculate the maximum blank diameter of 38mm. Materials chosen 4O × 4O5mm. Minister of the forging stroke 300mm, 38mm diameter,[link widoczny dla zalogowanych], so calculating the rough, the need to pull into a 30mm and length 0mm 550mitt around,[link widoczny dla zalogowanych], and then bent into the curved slot (Figure 3). Blank when the system is taking into account the impact of distortion, springback can be reduced to zero and ignored, largely in accordance with the shape of hot forging plans to confirm the groove size, structure, bending time. Blank display to test the positioning surface angle, as long as the operator end of the blank into position flush with the test angle, the system can be accurate out of the blank form to release final forging-type slot. Since I check twitter Pik angle in Figure 3 Planar arrangement of the final forging die bending die in Figure 3 corrected the design. Ge Qu vertical slot 'stock after the final forging and trimming, the level of Qi has been shaped bend, and the remaining is how will the vertical direction correction mode curved pressure out. Calibration curve on the friction press, are static deformation, forging,[link widoczny dla zalogowanych], after bending will produce a certain amount of resilience, in order to eliminate, take the following measures to foot; (1) maintained at 800 \deformation conditions. (2) 47.30 zoom in to 49. . (3) 49 in one direction into two with the elevation of the 2430 elevation, changing the side of the bend to both sides of the bend, reduce the local deformation,[link widoczny dla zalogowanych], the gap is zero, see Figure 4. 4 - trial results set 4 _, strap down fried: final forging, the bending of the billet can be more accurately placed in the final forging die slot, the final flash of each part after forging more uniform. After cooling correction bending, forging the horizontal and vertical size and shape are bent to drawings. Wu closing date I2000-04-2I 'thermal processing technology) j 4 where a 61 on one expansion
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