In this article, we’ll explore essential formulas for trigonometry, cutting speed, feed rates, and more. You’ll gain practical insights to enhance your machining efficiency and accuracy. Get ready to unlock the secrets behind seamless metalworking!
1.tgθ=b/a ctgθ=a/b
2.Sinθ=b/c Cos=a/c
Vc＝(πDS)/1000
F＝SZFz
Scallop＝(ae*ae)/8R
Φ＝√2R2
X. Y＝D/4
Q＝(aeapF)/1000
Fz＝hm * √(D/ap )
Tooling depth = plate thickness – tool height + drill tip (0.3D)
T(min)=L(min)/N(rpm)*f(mm/rev)＝πDL/1000vf
Drill factor table fz
| Dia. mm | Feed knife mm/rev |
| 1.6~3.2 | 0.025~0.075 |
| 3.2~6.4 | 0.05~0.15 |
| 6.4~12.8 | 0.10~0.25 |
| 12.8~25 | 0.175~0.375 |
| >25 | 0.376~0.625 |
1 inch = 25.4 mm.
As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business.
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