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Scissors: Forged, Ground Hollow and Set
As the Sheffield cutlery trade made them, each scissor blade and its bow (finger loop) is forged from steel: a hole is punched through the flattened rod and opened over the point of a small beaked anvil to form the bow. Die-forging under a heavy stamp, with the surplus rim sheared off in a fly-press, was replacing hand forging by 1913. The blades are annealed, filed and drilled for the rivet, then ground: each is hollow on its inner face, concave from rivet to point, and given a slight twist toward the other so the edges meet along their whole length. The pair is fitted, wound with iron wire, hardened, reground and polished, and finally riveted together and set.
高级
Works process (early 1900s)
说明
1
1
Forge the blades
Forge the blades
Forge each blade and shank; punch a hole through the flattened rod and open it over the beaked anvil to form the bow.
此步骤所需材料:
工具钢扁钢1 个所需工具:
铁匠炉
铁砧
尖嘴小砧
锻打锤2
2
Anneal, file and drill
Anneal, file and drill
Anneal the blades instead of hardening them; file the shanks and bows to shape, square the joint and bore the rivet hole.
所需工具:
金属锉
台钻3
3
Grind
Grind
Grind each blade hollow from back to edge, concave from rivet to point, with a slight twist toward its partner.
所需工具:
旋转磨石4
4
Fit and harden
Fit and harden
Fit the pair, wind them from the points upward with iron wire, take out the rivet and harden the blades.
此步骤所需材料:
钢丝0.5 m所需工具:
铁匠炉
淬火水桶5
5
Finish and set
Finish and set
Grind, glaze and polish the bows and shanks again and burnish them; rivet the blades together and set them so the edges meet along their length.
此步骤所需材料:
钢铆钉1 个所需工具:
旋转磨石
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