FAQs – Sonic-Mill®

Sonic-Mill® provides machining services for technical ceramics and glass materials (hard/brittle) using ultrasonic equipment that is manufactured by Sonic-Mill.
Sonic-Mill® contracts to provide machining services on technical ceramics and glass materials.
In Sonic-Mill equipment, ultrasonic power begins with a 1000-watt power supply that converts conventional line voltage to 20kHz electrical energy. This high-frequency electrical energy is provided to a piezo-electric converter, which changes it into a mechanical motion, ultrasonic motion. This motion from the converter is then amplified and transmitted to the horn and cutting tool, causing the tool face to vibrate perpendicularly thousands of times per second with no side-to-side motion.
Technical Ceramics and Glass materials, including:
  • Alumina
  • Aluminum Nitride
  • Boron Carbide
  • Boron Nitride
  • Carbon Fiber Reinforced Plastics (CFRP)
  • Ferrite
  • Graphite
  • Glass
  • Glass Preforms
  • Quartz
  • Ruby
  • Sapphire
  • Silicon
  • Silicon Carbide
  • Zirconia
Sonic-Mill ultrasonic equipment does not machine metal materials. Metals are usually hard, but not brittle, materials. Ultrasonic machining typically works with materials that are hard and brittle.
With our sinker (SUM) machines: .013" (0.33mm)
With our rotary (RUM) machines: .023" (0.60mm)
  • Thru holes
  • Blind (flat-bottomed) holes
  • Multiple-holes
  • Deep-holes
  • Interpolation (circular and linear) or router
  • Slots, grooves, channels
Sinker (SUM) machines: 7/16" thick (will vary based on material and tolerance requirements)
Rotary (RUM) machines: up to 11" deep (typical 5mm diameter x 11" length)
Sinker (SUM) machines: +/- .002" (+/-0.10mm) on diameter, positioning, parallelism
Rotary (RUM) machines: +/- .002" (+/-0.05mm) on diameter, positioning, parallelism
We require a print or drawing of your application requirements that includes enough information to determine machining features, tolerances, material, and any other specifics. Typically, our customers provide the material to be machined.
Sinker: This method allows you to drill small holes (.015" diameter) in thin materials. There are also advantages of cutting shapes and designs , as well as multi-hole drilling (ability to drill multiple holes simultaneously in an array of 1" maximum diameter (1" horn size).

Rotary: This method allows you the ability to drill deep holes (deep hole drilling) up to 11" depths in most materials. This method is more accurate in hole positioning and movement (+/-.002").
Yes, we have a spindle exchange program in place. You can return your spindle for a core credit and we will exchange with a newly re-manufactured spindle. Please specify which type of spindle is to be returned; BSP spindle (Branson style), Kneemill or bedmill. Please call for pricing.
  • Aerospace
  • Semiconductor
  • Fiber-Optics
  • Government
  • Electronics
  • Sensors
  • Educational
  • Medical
Yes, call us at: 1.505.839.3535