contactor6, Author at UKAM Industrial Superhard Tools

04 Sep

Diamond Wire Cutting for Silicon, Sapphire & Ceramics

When cutting silicon, sapphire, quartz, advanced ceramics, glass, SiC, or other hard and brittle materials, the cutting tool does more than separate one piece from another. It determines how much material is lost, how much damage is introduced into the cut surface, how much secondary processing is required, and how consistently the finished parts can meet dimensional requirements.

02 Sep

Precision Diamond Core Drilling for Photonics: How to Reduce Chipping, Improve Hole Quality, and Extend Tool Life

A hole can meet its nominal diameter and still fail a photonics application. The entrance may be chipped. The exit edge may have broken away. The hole may have taper, poor wall quality, or subsurface damage. Tool life may be too short to support production. Or the drilling process may work on one material and become unstable on another. For manufacturers working with brittle optical and photonics materials, hole quality is not simply a dimensional measurement.

01 Sep

Grinding Force vs. Wheel Condition: How Engineers Can Detect Wheel Dulling Before Part Quality Fails

A grinding wheel does not necessarily reach the end of its useful production life when the abrasive is physically worn away. In many grinding operations, the process begins to deteriorate while the wheel still appears usable. Grinding force may increase. Spindle load can rise. Surface finish may begin to change. Dressing intervals may shorten. Dimensional stability can deteriorate. Thermal damage may eventually appear.

27 Aug

Custom Diamond and CBN Tools: How to Specify the Right Tool for Your Application

A standard diamond or CBN tool can be the right abrasive and still be the wrong tool for the application. The problem may be the tool geometry, abrasive size, concentration, bond, working-layer thickness, mounting arrangement, tolerance, or the way the tool interacts with the machine and workpiece. This becomes especially important when an application involves tight tolerances, unusual materials, complex profiles, miniature features, difficult access, high production volumes, or a tool geometry that is not available as a standard product.

27 Aug

Diamond vs. CBN: How to Select the Right Superabrasive for Your Material

Selecting the wrong superabrasive turns a tooling change into a production problem. The symptoms are predictable: rapid wheel wear, dressing intervals that keep shortening, rising spindle load, chipped ceramic edges, burned steel surfaces, dimensional drift, kerf loss you cannot afford, and a scrap rate that climbs every week.

24 Aug

CBN vs. Conventional Grinding Wheels: When Should You Make the Switch?

A conventional grinding wheel can produce acceptable parts for years and still become the limiting factor when material hardness, stock removal, tolerance, surface finish, or production volume increases. Engineers usually begin considering CBN after seeing higher grinding forces, increasing thermal damage, shorter wheel life, more frequent dressing, declining productivity, or dimensional instability.

21 Aug

How to Select the Right CBN Grinding Wheel for Hardened Steel

Selecting a CBN grinding wheel for hardened steel is not a matter of choosing the hardest abrasive available. A wheel can be perfectly compatible with the workpiece chemistry and still produce grinding burn, rapid wheel wear, poor surface finish, dimensional drift, or unacceptable cycle time if the grit, concentration, bond, geometry, wheel speed, feed, dressing method, or coolant delivery is wrong.

19 Aug

How to Choose the Right Diamond Dresser for Your Grinding Wheel

Selecting the wrong diamond dresser can shorten grinding wheel life, increase dressing frequency, change wheel geometry, increase grinding forces, and create inconsistent surface finish. The problem often looks like a grinding wheel problem, but the dresser, the dressing method, the machine condition, and the dressing parameters can all be equally responsible.

14 Aug

How Feed Rate, RPM & Coolant Affect Diamond Blade Performance

Diamond blade performance is often evaluated based on blade life alone. When cutting quality begins to decline, many manufacturers assume that the blade has reached the end of its service life and simply replace it with a new one.