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 Posted: Thu 2:37, 20 Jan 2011 Post subject: ugg italia Bonded layers of cold forming _3508 |
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Bonded layers of cold forming
, A large amount of variants, the size of each part can not meet the design requirements. If Bonded by layers cold pressing of the product type. The phenomenon can be avoided. Example in Figure 7 + operating procedures are as follows. l rip 71) first volume of the three cylinders were accurate mapping out. 2) Mapping volume were calculated volume needed to suppress the mixed feeding amount. 3) ready to die, first suppress the large cylinder, said raw materials needed to suppress well into the mold shown in Figure 8. 84 ring) Remove the suppression of a large cylinder of the punch + the body to suppress the small Zhu sets (this set of three equal parts separated along the axis) required by Figure 9 into the mold, placed in a large cylinder has good compression top. Respect for a Sun Mingjun: layers of cold forming circle revolves connection 95) with a conical tool, there will be no covers over the surface damage,[link widoczny dla zalogowanych], the depth of destruction 0.4 ~ 0.6ram, as shown in Figure l0, will undermine material poured out of that good. Figure 1o6) to suppress the small cylinder, said the raw materials required for good, plus the amount of raw materials to be poured out (the raw material can no longer be poured out, can only be a good material to fill) and then poured mold to suppress, such as �� circle shown in Figure 117) will be reversed mode,[link widoczny dla zalogowanych], remove the inner sleeve Xiadian to release the mold (in sets of three equal parts along the axial points), and did not destroy the covers over the surface,[link widoczny dla zalogowanych], as shown in Figure 12, then the provisions of Section 6 of suppression operations, as shown in Figure l3. Figure 132.8 the upper and lower inner sleeve, red, rough with the extrusion from the mold, the taking of the upper and lower out of the semi-rough shape. 3 layers bonded cold forming method and comparison of hot welding. 1) layers of cold forming, revolves knot is at room temperature, the mixture has been pressing the layers of rough products, and then sintered at high temperature; hot welding raw materials under high temperature and pressure has been forming in the Summer Day Results alloy products on. 2) Bonded layers of cold formed steel used. Can be used repeatedly until the damage to the natural ground; and hot welding graphite mold used only once, the high cost of mold 3) Bonded by layers cold formed pressed sintered semi-finished blank uniform as a whole in the grain Photo 1; and suppressed by hot welding alloys, many parts of the alloy heat causes the grain growth as shown in photo 2, _1. 4) bond with the production of cold forming layers of the alloy surface is smooth, geometric tolerance of small,[link widoczny dla zalogowanych], deep processing of a small amount; hot plate capsule Taiwan l5 Zi startling production of welding alloy surface roughness. Difficult to clean, and the processing volume. 5) Bonded cold forming layers, process easy to control,[link widoczny dla zalogowanych], quality and stability; and hot welding operation, temperature, pressure, temperature, cooling rate and contraction and so difficult to control the quality of instability. 6) Bonded cold forming layers. Suitable for high-volume, low-volume, single product to suppress a small production; hot welding method is only suitable for small batch, single-product repression of major production. 1 laminated film forming chamber revolves knot pressure washed the semi-rough grain structure Pina photo 2 hot pressed to defend the connection box of the grain structure 4 together with the bonding method is cold forming layers Note 1) of the die design part of the contraction coefficient of the control line; 2) suppression of the same product composition control 3) be pressed too much, the main body, after the pressure is small, vice body that the body be pressed too much, then down the small body. Pressure of the main first, then press vice body; 4) the depth of the damaged surface not too deep. Best controlled at between 0.4 ~ 0.6mm. Surface should be completely destroyed. To prevent the residual surface stress. 5 Conclusions 1) Bonded cold forming layers is the key to being a part of the main layers, the main parts of the surface should be a deal. To prevent the residual surface stress 2) damage to the surface of the tools used must be tapered, rather than using a tool such as shovel-shaped, cone-shaped tool with the main purpose of dealing with man-made surface into a convex shape. Increase the contact surface, if a class with shovel-shaped tool. Appeared virtually a relatively flat surface, so that the combination of the two parts is reduced. 3) this method can suppress the hot pressing and common cold forming method can not suppress the geometry of the complex alloy products. References 1 Wang Guodong. Co-production of hard wall box c management. Metallurgical Industry Press. 1988 (SUI issued on the date of 1996, a �� a 3O) RESEARCHONBONDINGPROCESSOFCOLDFORMINGWITHPLYPRESSURESun Sh�� g dish (DalianCementedCarbideWorks) BSTRcrBondingpr0 �� s. fcoldformingwithplypressureisintroduced, andcomparedwithhot - pressapprcech. KEYWORDSiColdforming. press, heatpressing
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