IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Sheet Metal Stamping: Blanks, Drawn Cans and Washers
Stamping turns coil into parts at press speed. The coil is uncoiled, straightened and fed into a press whose die cuts and shapes it: blanking cuts the outline, piercing punches holes, forming bends, drawing pulls a flat blank into a cup. A washer is one blank pierced in the middle. A drink can is a blank punched from stiff cold-rolled aluminium sheet (typically alloy 3104-H19 or 3004-H19), drawn into a cup about three inches across, then pushed through ironing rings that stretch and thin the wall. Its end is stamped separately from alloy 5182-H48 coil; a conversion press forms the rivet button, scores the opening and fits the tab.
Ilọsíwájú
Seconds per part (industrial)
Ìlànà
1
1
Uncoil and straighten
Uncoil and straighten
The coil is set on an uncoiler and fed through straightening rolls into the press.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìyípo aluminiọ̀mù100 kg
Ìyípo irin líle100 kg2
2
Blank and pierce
Blank and pierce
In a progressive die each press stroke advances the strip one station: one station pierces holes, the next blanks the outline. Steel washers are made this way.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ àwo irin
Ẹnu ìtẹ̀ onípele3
3
Draw cups
Draw cups
For cans, round blanks of aluminium are drawn into shallow cups.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ àwo irinẸnu ìtẹ̀ onípele4
4
Redraw and iron
Redraw and iron
Each cup is pushed through ironing rings that lengthen and thin the wall; the base dome is formed at the same time.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ àwo irin5
5
Trim, neck and flange
Trim, neck and flange
The ragged top is trimmed and the open end necked in and flanged to take the end.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ àwo irin6
6
Stamp the ends
Stamp the ends
Shells are stamped from end-stock coil; a conversion press forms the rivet button, scores the opening and fits a tab formed from a separate strip.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ àwo irinẸnu ìtẹ̀ onípele7
7
Inspect
Inspect
Parts are measured against the drawing; cans are checked for wall thickness and leaks.
Àwọn irinṣẹ́ tí a nílò:
Òṣùwọ̀n Kálípà Díjítà Ìnṣì 6Àwọn ohun-èlò
2- 100 kgÀyè
- 100 kgÀyè
Ìtọ́nisọ́nà yìí ń ṣe
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