Issue 30

C.J.Su et alii, Frattura ed Integrità Strutturale, 30 (2014) 502-514; DOI: 10.3221/IGF-ESIS.30.61

Figure 16 : The effect of blanking quality by blanking clearance

E XPERIMENTAL RESULTS

T

his experiment in Fig. 17 uses fine blanking dies that are of different thickness (6mm, 8mm and 10mm) of steel plate to confirm the feasibility of bilateral ring gear blank holder. Parts of this experiment are shown in Fig. 18. Compared with the simulation, the experiment has consistent results as delivered in Fig. 19. The blanking part that blank by bilateral gear ring have a high section quality and the experimental results can satisfy the requirement of practical production.

,13-rubber washer 14-plunger 15-die seat 16-ring gear gag 17-punch 18-plunger 19-bridge plate 20-hydraulic slide 21-pull rod 22-punch fix plate 23-adapter ring 24-hydraulic platform

1-plunger 2-punch seat 3-knockout plate 4-die

5-guide Pillar 6-guide sleeve 7-guide sleeve of pinger 8-backing plate 9-press countertop 10-adapter ring, 11-hydraulic piston 12-pressure pad

Figure 17 : Structure diagram of fine blanking die.

It can be seen that the section quality of final parts is higher, the fault zone is also improved, and fillet and burr get smaller. The quality of the eventual parts is ideal.

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