Precision machining , Beta titanium pipe
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Femtosecond-laser Process
Femtosecond-laser Process
update :
– Features –
– Ultra-short pulse laser process:
1 femtosecond is one petaseconds.
(The light can travel only 0.3 μm in one femtosecond.)
– Minimum thermal effect to materials
– High precision work:
Working accuracy is submicrons to microns.
in process
【Work samples】
– Stent-shaped cutting with biomass plastics
Material: Polylactic-acid tube
Size: O.D. 1.52, I.D. 1.09
Wave length: Near ultraviolet wave length
– Sapphire glass
Material: Sapphire glass
Size: 0.8 mm in thickness
Wave length: Near infrared wave length
Enlarged view of the cutting surface
dia 0.8 mm, 0.25 mm deep with 0.2 mm center holes
(enlarged view)
0.3 mm high, 0.3 mm wide, 0.3 mm deep
(with taper forging inclined at 45°)
(enlarged view)
– Medical use tube
Material: Polyimide tube for medical use
Size: I.D. 1.0 mm, 0.14 mm thick with 0.5 X 2 mm angle holes
Wave length: Near ultraviolet wave length
straight cutting
Enlarged view of the cutting surface
(Three dissimilar materials are simultaneously cut without changing the cutting condition.)
– Dinple making on NiTi tube
Material: NiTi tube
Size: O.D. 6.0 mm, 0.5 mm thick
Wave length: Near ultraviolet wave length
dia. 1.0 mm dinples
dinple depth(from the left):
0.5 mm (through), 0.4 mm, 0.3 mm
0.2 mm, 0.1 mm, 0.05 mm
– Molybdenum
Material: Molybdenum
Size: 0.5 mm in thickness
Wave length: Visible light wave length
H0.4mm, W0.4mm , D0.2mm
↓
(Enlarged views)
(Enlarged views)
H0.3mm, W0.3mm , D0.3mm
(with taper forging inclined at 45°)
(斜め45°ﾃｰﾊﾟｰ)
(Enlarged views)
– Silicon wafer
Material: Silicon wafer (dummy grade)
Size: 0.28 mm in thickness
Wave length: Visible light wave length
dia. 0.5mm through : dia. 0.2mm through
Enlargement view
Enlargement view
H0.3mm, W0.3mm , D0.3mm(with taper forging inclined at 45°)
(Enlargement view)
– Hexagon through-hole processing for zirconia
Material: Zirconia
Size: 0.5 mm in thickness, 0.3 mm each side
Wave length: Visible light wave length
– Silicon nitride
Material: Silicon nitride
Size: 0.3 mm in depth, 0.3 mm each side
Wave length: Visible light wave length
– Spiral processing with variable pitches on NiTi tube
Material: NiTi tube
Size: O.D. 1.08 mm, I.D. 0.82 mm
Wave length: Visible light wave length
