SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Utility Knife: Strip-Made Blades and a Moulded Handle
Utility knife blades are made from a coil of carbon steel strip. A punch press punches the notches along it, the strip is scored across where each blade will break off, and it is coiled again and hardened and tempered, in a vacuum furnace or in line, typically to about 58 Rockwell C. The hard strip is then ground, honed and stropped along one edge, and snapped at each score line into trapezoid blades. Snap-off blades use the same idea: the break comes at the score lines, where the metal is thinnest. The handle that holds the replaceable blade is die-cast metal or moulded plastic.
Juu
Continuous (industrial)
Maagizo
1
1
Punch the strip
Punch the strip
Run the carbon steel strip through a punch press to punch the notches at regular spacing.
Vifaa kwa hatua hii:
Utepe wa feleji ya kaboni10 kgZana zinazohitajika:
Mkandamizo wa kutoboa2
2
Score
Score
Score the strip across at each blade's side edge: these lines are where it will later snap.
Zana zinazohitajika:
Roli za kuchora mistari kwenye utepe3
3
Harden and temper
Harden and temper
Coil the strip and harden and temper it, to about 58 Rockwell C.
Zana zinazohitajika:
Tanuru ya kukaza na kupoza kiasi utepe4
4
Grind the edge
Grind the edge
Grind, hone and strop one side of the strip to a straight cutting edge.
Zana zinazohitajika:
Mstari wa kunoa na kuhoni makali ya bapa5
5
Snap into blades
Snap into blades
Snap the strip at each score line into trapezoid blades.
6
6
Handle
Handle
Mould the handle that holds and retracts the blade, here in plastic.
Vifaa kwa hatua hii:
Chembechembe za ABS0.1 kgZana zinazohitajika:
Mashine ya kufinyanga kwa kudungaVifaa
2- Kishikilia Nafasi
- 0.1 kgKishikilia Nafasi
Zana Zinazohitajika
5- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.