The lapping process is used to provide flatness, parallelism, thickness identity, and surface finishes to extremely demanding tolerances.
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Centerline Technologies uses free abrasive lapping processes to provide flatness, parallelism, thickness identity, and surface finishes to extremely demanding tolerances.
In the free abrasive machining process, an abrasive (various compounds) mixed into the selected slurry is applied to a lap. The work part is placed on top of the lap in fixtures and both the lap and work plates are moving. This creates the cutting action/material removal at a controlled rate. Using various methods and unique processes, Centerline can finish pieces without introducing stresses and heat damage associated with other processes, such as grinding.
The selection of abrasive, pressure, speed of machine and shape of the lap all play a critical role in the outcome of your finished product. Using SPC processes, the controls at Centerline Technologies will provide you with a repeatable product from one lot to the next, again and again, time after time.
Here at Centerline Technologies we use single and double sided lapping, and you can rest assured that we will recommend the processes that will benefit your product the most, and to provide the highest quality at the most economical rate.
Material
|
Surface Finish
(u-inches) |
Thickness Tolerance
|
Applications
|
As-Fired 99.6% Alumina
|
< 4 u-in
|
+/- 10% or +/- 5% |
Use for low to medium power DC & RF circuits |
Polished 99.6% Alumina
|
10 u-in nominal
|
+/- .0005" | Use for low to medium power RF & Microwave circuits |
Lapped 99.5% Beryllium Oxide
|
20-30 u-in
|
+/- .0005" | Use for high power DC/RF/Microwave circuits |
Lapped Aluminum Nitride
|
12 - 20 u-in nominal
|
+/- .0005" | Use for higher power DC/RF/Microwave circuits |
Lapped Fused Silica
|
10 u-in nominal matte finish
|
+/- .0005" | Use for high frequency circuits requiring extremely low loss performance |
Lapped Titanates
|
15-30 u-in
|
+/- .0005" | RF & Microwave circuits requiring high Q |
Centerline
Technologies, LLC
577 Main Street
Suite 270
Hudson, MA 01749
Call: 978-568-1330
Fax: 978-568-1334