Research on the Relationship between the Clearance and Product Precision of Micro Punching Dies

Abstract:

This research utilizes an image-vision-system to measure the size of the product-burr. The relational expression was established between the clearance of micro punching die and burr size after blanking the composite material via a neural network. This can help to anticipate the burr size under any clearance and used cycles of punching die. The purposes of this research are: (1) it can predict the used cycles of punching die at any clearance between the punch and die, the engineer can change the punching dies at right moment to prevent the bad product from producing; (2) it can utilize this research to find out the optimum clearance condition which can avoid bad design of the punching die, which will take long time to repaired the punching die.

• Periodical: Materials Science Forum (Volumes 532-533)
• Pages: 401-403
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.532-533.401
• Online since: December 2006
• Authors: Jui Chang Lin, King Sun Lee, Chia Ming Yen, Wu Jen Lee, Yu Hua Lin
• Keywords: Burr, Clearance, Neural Network (NN), Punch

References

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00 2. 00 4. 00 6. 00 8. 00 10. 00 Number of the punched hole(X1000000th).

DOI: 10.7717/peerj.10041/table-2

00.

01.

02.

03.

04.

05.

06 Wear(mm) Burr [mm] number of the punched hole method Fig. 3 The relationship between number of the punched hole and burr of punch AO-side Clearance.

015(mm) Clearance.

018(mm) Clearance.

021(mm) Clearance.

024(mm).

[1] 458X106 th 0. 007 0. 012 0. 013 0. 0135.

[1] 73X106th 0. 008 0. 0125 0. 014 0. 02.

[3] 2X106 th 0. 0175 0. 0205 0. 0220 0. 025.

[4] 13X106 th 0. 0235 0. 028 0. 031 0. 034.

[5] 2X106 th 0. 030 0. 032 0. 035 0. 040.

[6] 27X106 th 0. 0365 0. 0375 0. 040 0. 047.

[7] 61X106 th 0. 040 0. 042 0. 048 0. 0525.

[8] 27X106 th 0. 049 0. 050 0. 052 0. 060 Parameters numbers Parameters numbers Clearance.

008(mm) Clearance.

011 (mm) Clearanc e 0. 014 (mm) Clearance.

017 (mm).

[1] 458X106 th 0. 0095 0. 001 0. 008 0. 010.

[1] 73X106 th 0. 0195 0. 015 0. 0195 0. 020.

[3] 2X106 th 0. 0295 0. 018 0. 026 0. 028.

[4] 13X106 th 0. 031 0. 021 0. 029 0. 031.

[5] 2X106 th 0. 035 0. 027 0. 032 0. 04.

[6] 27X106 th 0. 0375 0. 034 0. 0395 0. 0425.

[7] 61X106 th 0. 044 0. 035 0. 041 0. 0455.

[8] 27X106 th 0. 045 0. 0365 0. 0470 0. 0490.