SCI 21-22 General Catalog

Ultra-Precision Cutting Tools UPC

As a leading manufacturer of ultra-precision diamond cutting tools, A.L.M.T. Corp. offers a broad range of nano- and micro-forming cutting tools to meet market needs. Our many years of experience and extensive knowledge give us a comprehensive understanding of the optimal physical properties of single-crystal diamond. Our state-of-the-art development process yields the highest precision in ground tool edge measurement. As a result, our diamond cutting tools achieve high-precision microscopic cutting of work materials in the order of nanometres. Ultra-Precision Cutting Tool UPC TM Nano/Microforming Tools

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□ Selection and Measurement Technology

Anisotropy of the Atomic Distance

Creation of tools to achieve cutting edge sharpness in the order of nanometres starts with the screening and selection of single-crystal diamond. The lattice constant of diamond is always 3.5667 Å, but the distance between crystal faces varies, causing differences in the ease of cleavage and intrusion of impurities. Therefore, sorting of rough diamonds is important in addition to the identification of crystal orientation according to the machining conditions. Identify the anisotropy of atoms in single-crystal diamond and pursue the best crystal orientation

2 2

a

a

2 2

2 2 a

a

a

Diamond Lattice Model

12 2

a

X-Ray Photograph of Single-crystal Diamond

4 2

4 1

a

a

4 3

a

a=3.5667Å

a=3.5667Å

a=3.5667Å

( 110 )

( 100 )

( 111 )

□ Grinding and Measurement Technologies

Waviness 44.5 nm

In order to accurately produce nanometre-controlled movement on work materials, a cutting tool requires a sharp cutting edge capable of producing nanometre-sized chips and high profile precision. We have achieved this using our unique grinding and measurement technologies. Cutting edge grinding technology that produces nanometre- controlled movement

250nm

125 nm

45°

45°

22°30'

0 22°30'

125 nm

250 nm

UPC-R SEM Image

Manu. No. Window Angle 90°00'

Corner Radius 0.052 mm Corner Height 4.120 mm

80 nm

500 nm

Chart of inspection using our uniquely developed waviness meter

Sharply ground single-crystal diamond cutting edge

Nanometre-sized chips

□ Nano/Micro Processing Technology

With its cutting edge sharpness in the order of nanometres, A.L.M.T.'s UPC-Nano series achieves a surface roughness and straightness that cannot be obtained by the photolithography or ion-beam method. Straightness and surface roughness unattainable with photolithography or ion-beam method

15μm width Nano Endmill tip

This technology is also effective for micrometre-order processing of high aspect ratio.

100 μm

Size comparison at same magnification (Nano Endmill (width 15 μm) and human hair (ø50 μm))

Mould surface processed in the order of micrometres

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