For Various Mold Machining (Spherical/Non-Spherical, Camera Lens Molds, etc.)/For Various Mold Machining (Infared Lens Molds, etc.) Ultra-Precision Cutting Tool UPC-R Optical Components
Ultra-precision Cutting Tool UPC-R For Various Mold Machining (Spherical/Non-Spherical, Camera Lens Molds, etc.)
Exhibits outstanding performance in ultra-precision cutting An ultra-precision cutting tool for machining of molds used for products like spherical/aspherical lenses and camera lenses where extremely high precision is called for. Our proprietary development process yields high-precision polished blades which realise microscopic shaping of workpieces with high precision on the nanometre level.
Features D The cutting edge is uniformly nished in high quality, achieving nanometre-level surface roughness. D An inspection report of the cutting edge arc waviness is attached to the product for thorough quality control. Applications D BD pickup lens molds, digital camera lens molds, camera lens molds for smartphones/computers/tablets, spherical/aspherical mirrors, etc.
AL
Close-up of Cutting Edge
Cutting Edge Shape
40° L
Cutting Edge
UPC-RT
UPC-RR
Cutting Edge
R
R
0.5
Rake Face
Flank
W+0.5
Corner Radius: 5 μm
Micro cracks
(1) L: 51, W: 6.35 (2) L: 60, W: 8 Standard Size 60°
Nanometre-level ne machining is possible D Sharp Cutting Edge Machining without deforming or damaging workpieces during ne nishing D Cutting Edge Without Chipping Mirror surface without transfer of workpiece irregularities Mirror nishing of Ra 5nm or less is possible UPC cutting edge Cutting edge with microscopic irregularities
Dimensions and Highest Accuracy
Width of Cut W (RR)
Cutting Edge Angle
Relief Angle
Edge Waviness (μm)
Corner Radius R
Rake Angle
Cat. No.
≤90°
≤120°
≤150°
Very High Precision High Precision
0.05
0.1
0.20 0.002 to 200
0.5 to 5
0° to 20° -30° to 10°
20° or more
UPC-R
0.25
0.5
1
*Please consult us as dimensions and accuracy vary depending on the combination of each element.
Ultra-precision Cutting Tool UPC-R For Various Mold Machining (Infrared Lens Molds, etc.)
Makes its presence felt in ne machining of hard brittle material Tool life was a problem when machining germanium and silicon lenses used in infrared sensors and night-vision lenses. Proprietary ne edge treatment applied to a single-crystal diamond cutting edge has enabled signi cant extension of tool life.
Features D Cutting edge height (centre height) is the same on any conical surface. D Sharp cutting edge with nanometric precision. D Cutting edge can achieve 0.05μm waviness precision. D Also applicable to machining of calcium uoride or cemented carbide. Applications D Infrared sensor lenses, night-vision camera lenses, germanium lenses, silicon lenses, calcium uoride lenses, cobalt-free carbide molds
Comparative Examples 1) Work Material
: Infrared sensor transmissive lens, ø95mm germanium
2) Tool Speci cation 3) Cutting Conditions
: Corner radius 1.5mm, relief angle 10°
: Rotation speed 2,000min -1 , feed rate 1.75μm/rev, allowance 1.5μm
UPC Cutting Edge for Infrared (IR) Lenses and Cemented Carbide Molds
Results
250
2.4x tool life
200
150
1 to 3μm
100
Negative Rake Face
50
Flank
0
For Infrared Lens
Conventional Tool
*Conventional Tool as 100
Uniform Negative Rake Face of Cutting Edge
AL10
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