Pono ka hana make e hilinaʻi i ka punch (press) e hāʻawi i ka mana, ka nui make ʻokoʻa, pono ke ʻano o ke ʻano e koho i nā kuʻi like ʻole e kūlike. Hiki i ke koho kūpono o ka punch ke hōʻemi i ke kumukūʻai a mālama i nā kumuwaiwai.
ʻO ke ana nui o ka punch wae make e ana ʻia e ka tonnage, i loaʻa mau ʻia e ka huina o ka mana hakahaka, e hana ana i ka ikaika, e kaomi ana i ka ikaika a me ka ʻānai ʻana. ʻO ka mea nui ka hakahaka ikaika.
ʻAʻole paʻa ka ikaika hakahaka, a ʻo kāna loli i kahi kaʻina haki penei: ke hoʻomaka ka punch e hoʻopili i ka huahana hahi, aia mau ka ikaika hakahaka i kahi kūlana hoʻonui. Ke komo ka punch ma kahi o 1/3 o ka mānoanoa o nā mea, hōʻea ka ikaika hakahaka i ka nui o ke kumukūʻai. A laila, ma muli o ke ʻano o ka wahi haʻihaʻi o nā mea, e emi mālie ka ikaika. No laila, ʻo ka helu ʻana o ka mana hakahaka e helu ai i ka mana hakahaka maximum.

I ka helu ʻana i ka ikaika hakahaka
I ka ho omaulia ana i ka haʻilula o ka mana hakahaka maʻamau: P = L * t * KS kg
Kaha: ʻo P ka ikaika e koi ʻia no ka hakahaka, i kg
ʻO L ka palena palena palena o ka huahana blanking, i mm
ʻO T ka mānoanoa o nā mea, i mm
ʻO KS ka ikaika ʻoki o nā mea, i kg / mm 2
Ma ke ʻano laulā, ke hana ʻia ka huahana hakahaka o ka kila kila, ʻo ke kumukūʻai kikoʻī o ka ikaika shear material penei: KS = 35kg / mm2
Laʻana:
Kuhi ka mānoanoa o ka mea t = 1.2, he pā kila palupalu nā mea, a pono ka huahana i ke kuʻi i kahi pā huinahā me ke ʻano o 500mmx700mm. He aha ka mana hakahaka?
Pane: e like me ka helu helu: P = l × t × KS
L = (500 + 700) × 2 = 2400
t = 1.2, Ks = 35Kg / mm²
No laila, P = 2400 × 1.2 × 35 = 100800kg = 100t
Ke koho ʻana i ke tona, 30% e hoʻohui ʻia ma mua. No laila, ʻo ka tonnage ma kahi o 130 tone.