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Challenge

Cycle time reduction while maintaining overall machine uptime resulting in increased throughput. Added versatility to the control system allowing process improvement through actionable reporting. Reducing maintenance such as wheel dressing to increase up time. NiTi is a difficult material to shape due to its high nickel content, moreover, a smooth surface finish is critical to prevent part failure.

Solution

Solution: Glebar CAM.3 Micro Grinder

Built-in high-frequency sensor points monitoring bearing vibration and temperature for effective preemptive maintenance planning. The CAM.3 uses a dual-carriage, dual-collet, linear-motor feed system that can simultaneously control the wire's linear position, feed, and rotation controlling the wire diameter and length to a resolution of 0.1 micron. The 16" diameter work wheel, mounted on a servo-driven spindle, has the capability to achieve over 20,900 sfpm generating faster cycle times with built-in wheel balancing.

 

Profile from Nitinol guidewire ground on the CAM.3 in a recent test.

Profile from Nitinol guidewire ground on the CAM.3 in a recent test.

  • Glebar has been grinding NiTi wires for over 30 years implementing the technology into several of its machine lines successfully.
  • Working in centerless mode, the CAM.3 completed the grind 40 percent faster producing a surface finish of 8 Ra on the same Nitinol wire.
  • Capable of grinding stock material from 0.005"-0.375" in diameter. In this application, the Nitinol wires had a major diameter of 0.018" and the tip diameter was 0.002".
  • The CAM.3 can be easily adapted to accept 6 axis robots, in-process gauging, and several autoloaders making it a versatile machine in any production environment.
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CAM.3

Micro Grinding Systems

CAM.3

CAM.3

The CAM.3 is built to grind medical guidewires, dental parts, and small diameter complex precision parts for various industries faster and with greater precision than other micro grinders. 

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