3/3/2014 | 1 MINUTE READ

Makino Wire EDM Expands Precision Micromachining Capabilities

Originally titled 'Wire EDM Expands Precision Micromachining Capabilities'
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The UPN-01 ultra-precision horizontal wire EDM from Makino is well-suited for micro-tolerance and fine surface finish applications.

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The UPN-01 ultra-precision horizontal wire EDM from Makino is well-suited for micro-tolerance and fine surface finish applications. Designed with a horizontal wire feed system, this sub-micron-level machine is said to provide reliable unattended operation even when working with wire diameters as fine as 0.00078" (0.02 mm). Its oil dielectric configuration also makes it suitable for high-accuracy machining of carbide and other hardened materials.

The wire EDM features X-, Y- and Z-axis travels of 6.29" × 6.29" × 1.96" (160 × 160 × 50 mm), with additional U- and V-axis travels of ±0.27" (7 mm) each. The UPN-01 will accommodate workpieces as large as 5.90" × 5.90" × 1.57" (150 × 150 × 40 mm) with a maximum payload of 17.63 lbs (8 kg), which includes the toolholder.  

The machine is also configured with an ultra-precision rotary C axis, which is used for holding and indexing of the workpiece, and provides rotational positioning accuracies of ±2 arcseconds. Due to the machine’s horizontal configuration, the conventional work table configuration is replaced with a frame or clamp-style tooling system that can also be automatically exchanged using the optional 16-station automatic work changer system.

The UPN-01’s wire diameter ranges from 0.00078" to 0.00393" (0.02-0.1 mm) with a minimum start hole diameter of 0.00118" (0.03 mm). Reliable and consistent automatic wire threading is achieved by using an air injection and suction system. The maximum taper angle capability is ±6 degrees with a 0.00393" (0.1-mm) wire diameter and 1.57" (40-mm) plate thickness.

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