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Flat Washers from Steel Sheet
A plain washer spreads a nut's or bolt head's load and protects the surface under it. ISO 7089 gives the M6 washer as 6.4 mm bore, 12 mm outside and 1.6 mm thick. Drill the bore first while the sheet is still large and easy to hold, cut the washer out roughly, then spin it on a bolt in a drill and file it round.
初学者
1 hour for 10 washers
说明
1
1
Mark out
Mark out
On 1.6 mm mild steel sheet, mark 12 mm circles 14 mm apart with the scriber and centre-punch each centre.
此步骤所需材料：
低碳钢板0.01 sqm
蓝色显示剂1 毫升所需工具：
划针
中心冲
6 英寸数显卡尺2
2
Drill the bores
Drill the bores
Clamp the sheet and drill each centre 6.4 mm, with cutting oil.
此步骤所需材料：
切削油5 毫升所需工具：
台钻
钻头套装
机用虎钳
安全眼镜3
3
Cut them out
Cut them out
Saw each washer out as a square just outside its circle, then cut the corners off.
所需工具：
钢锯
台虎钳4
4
Round them on a bolt
Round them on a bolt
Stack several on an M6 bolt with a nut, tighten, chuck the bolt in a drill, and run it slowly while a file trues the stack to 12 mm.
所需工具：
六角螺栓组合
充电式电钻
锉刀套装6 英寸数显卡尺安全眼镜5
5
Deburr
Deburr
Take them off and deburr both faces and the bore.
所需工具：
去毛刺刀锉刀套装6
6
Troubleshooting
Troubleshooting
Washer troubleshooting.
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