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Small diameter deep hole processing
Small diameter deep hole processing
update :
We can drill a hole with minimum diameter of 0.03 mm.
Please refer to the below for our processing experiences.
Small Diameter Hole Machining Results
<hole diameter> <depth> <material>
● φ0.05mm × 1.0 mm [SUS316L]
● φ0.10mm × 2.00mm【tb340・SUS316】
● φ0.15mm × 2.00mm 【SUS316】
● φ0.20mm × 6.00mm 【SUS316L】
● φ0.25mm × 8.00 mm 【64 titanium】
● φ0.5 mm × 13.50mm【SUS304】
● φ1.0 mm × 50.00mm【SUS316】
● φ3.0 mm × 62.00 mm [SUS304 Hastelloy C]
small-diameter deep hole drilling
We provide minimum deviation from straightness for small-diameter deep hole drilling, for example; deviation from linearity ≦ 0.05mm, inner surface roughness ≦ Ra 0.4 for hole dia. 0.1 mm, hole depth 2.5 mm.
Surface roughness examples in 80mm-deep-hole drilling
(hole dia. 3.0 mm, hole depth 80 mm)
surface roughness example
drilling: Ra 0.67 – 1.83
gun-drilling: Ra 0.43
reaming: Ra 0.13