Saturday, June 2, 2012, 3:28 AM
Octagonal ingot billet material under study and application
c = d, 2 / 2: 360. / 81:22. 3AB = 2 Γ d / 2 Γ tg / 2 ε octagonal billet cross-sectional area SA-8 Γ SaAOB: 8 Γ IOCxAB = Γ s Γ Γ d Γ Γ Γ [g curse β O. 8284d. 22 inscribed circle billet cross-sectional area S head: 71; / 4 Γ d production operations, regardless of octagonal or round billet billet cutting,adidas climacool schuhe, must ensure that cutting weight (rough weight) is unique. That is, G = G back to O. octagonal 8284dXL octagonal Γ r = / 4 Γ d Γ L Γ r solution was round: L octagonal an O. 9481L Round (1) l 0G octagonal shell: r Γ / 4 Γ d Γ L octagonal / O. 9481 (2) the use of formula (2), can be octagonal billet material under the relevant process parameters calculation. The formula (1), more clearly,adidas climacool, the same material under the weight, the octagonal billet blanking length is about a billet inscribed circle of 0.9481 times. That is, if the demand octagonal billet cutting length, press the inscribed circle can be calculated billet cutting length can be multiplied by 0948l. 2. Production operations in the actual production of the formula to simplify the application count tray, the operation is very easy to find workers in the next round billet material cut length. But multiplied by 0.9481, it is difficult to calculate. Therefore,adidas climacool hose, we then equation (1) do the following deformation. L from: 0.9481L ~: L a 0.0519L rounded values: L L octagonal head 10. O5L circle (3) from equation (3), is easy to see,adidas schuhe, octagonal billet cutting length approximately equal to the inscribed circle billet cutting length minus 0.05 times its value. If the impairment is one increments to 5mm,adidas neo, the length of the billet grade is exactly 100mm, and ten, a digit is negligible. If we consider the hydraulic press forging process on the size a bit to 0.5 in the trade-offs, flexible use,adidas la trainer, the error is smaller. V. CONCLUSIONS In summary, we can draw the following conclusions: 1. Used instead of the traditional octagonal billet round billet cutting process is feasible. 2. Octagonal billet cutting formula for calculating the process parameters can be divided into two situations: (1) process developed in the G star anise = r Γ / 4 Γ d Γ L octagonal / O. 9481 (2) manufacturing operations for several angles of L = L circle round a 005L 3. And compared to the traditional round billet cutting, octagonal billet cutting has two advantages: (1) simplify the operation process, save energy, improve production efficiency; (2), the precise weight of material,adidas climacool chill, raw material savings of up to about 5%. Sixth, the application order of the pull shaft end for example circular process, saving time,adidas online shop, forging, and will pull the intermediate shaft-order process delayed the round, and high temperature deformation, cold forging process to repair the line with the principle, = I two arts tend to be more rationalization. To further illustrate the problem, is to plant two typical forging pieces. Forging process supplemented by instructions. 1. Spindle material 45, forgings diagram (see Figure 2) before and after the process improvement process control: (1) improving the ingot before heading to rent a pull pull octagonal one side of a pull round (XVI angle corner blank blank or 32) a sub-pressure trough axis step by pulling both ends of the trim molding; (2) improved ingot upsetting a pull pull octagonal one side of a sub-pressure trough axis step by pulling both ends of the intermediate shaft-order rounding a trim shape. Obviously, the process not only reduces the segment improved 2 laps before the spindle forging diagram 2. Impeller material 34CrM01A, number 65 forging production diagram (see Figure 3) L-0n Figure 3 Schematic diagram of the impeller rotor forgings octagonal billet after cutting, saving a lot of raw materials. Contrast to the situation before and after the process improvement shown in Table 1. Table 1 before and after the situation improved impeller technology table of seats project process cutting operation, the actual weight of a process expected to total savings I Yi Fang Qu Weight kg / kg Size Weight Size Weight of round billet f (original process) 320x530353B320 Γ 530l8 Ding 5104 (Ikg about Taiwan people octagonal blank (now Technology) 320 Γ 503337320 Γ 5052 RMB 8840 yuan seven, and recommendations described in this article, the author of the ingot used instead of the traditional octagonal round billet billet material elaborated in the next, but there are a few points still need to: 1. octagonal ingot billet cutting for the upper and lower flat anvil, the other anvil of this paper is not in the list of conditions; (2) the use of large octagonal ingot billet cutting, must hold a cautious attitude j3. octagonal billet instead of using the traditional round billet cutting, process writing the file is no uniform standard. For ease of application, the authors suggested forging industry should be unified into a form of expression, such as β³ β³ β³ X β³ β³ β³, it standardized.
llL ----- _'----- Bu - a
due to the presence of the whole rigid flange