CBN GRinding wheels

Working with the right tools also calls for those tools to be in the right condition for the job. Cubic Boron Nitride (CBN) grinding wheels are perfect for machining processes that call for sharp, well-maintained cutting tools. Such tools ensure precision and speed for the machinists and for the entire process itself. The correct CBN grinding wheel, tool set-up and method of grinding for each type of tool are the key components to successfully sharpening cutting tools to their necessary specification and to serve their intended function.

What Is Cubic Boron Nitride or CBN?

Boron nitride on its own is a chemically and thermally resistant refractory compound of boron and nitrogen, existing in various crystalline forms. In its cubic form, cubic boron nitride, or CBN, is the second hardest material on earth behind the diamond. However, it has one key advantage over the diamond in that it does not chemically erode or wear away in the presence of certain other materials, which include graphite—although CBN is, like diamond, less stable than graphite—and other carbide forming elements such as nickel, iron or cobalt, during abrasive processing. Given its durability under such processing, CBN is the preferred product for the machining superalloys.

CBN differs from a diamond in another way in that it is only available as a synthesized material, as it does not occur naturally. This fact does not limit CBN in any way. Instead, it means that, similar to synthetic diamond, CBN can be tailored to provide exactly the precisely required traits for the specific application. Further, the key to this characteristic is CBN's ability to synthesize tetrahedral morphology in addition to the cubic and octahedral morphology, which also takes place in a diamond. This substance is available in the consistency of coarse grit down to micron powder and as sintered polycrystalline products, or polycrystalline diamond composites.

Following are just a few of the most common grinding applications:

  • Centerless
  • Cylindrical
  • Surface
  • Cutoff
  • Tool and cutter
  • Saw & knife sharpening

What is a CBN Grinding Wheel?

Many times, important tools and instruments need the removal of debris or a layer of material before they can be used effectively for the desired result. CBN grinding wheels deliver strong material removal rates without creating a lot of thermal damage to a workpiece. They provide longer wheel life and the ability to grind wet or dry, although for use in the superalloy applications, coolant must always be a consideration to eliminate metallurgical complications.

Industries That Rely on the CBN Grinding Wheel

Any industry that relies heavily on precision instruments for the purposes of safety and high-performance are likely to need the fine-tuning that the grinding process can offer for various instruments. Below are just a few of the top industries that depend on CBN grinding wheels for peak efficiency, effectiveness and success.

  • Aerospace
  • Power generation and wind turbines
  • Composites
  • Sharpening
  • Tool & die
  • Dental
  • Oil and gas
  • Mining
  • Automotive
  • Military

Within these critical industries, there are several materials processed that various organizations use in their processes to improve manufacturing, production, and results.

  • Tungsten Carbide
  • Ceramics
  • Composites
  • Zirconia aluminum oxide
  • Ferrites
  • Powdered metals
  • Titanium graphite composite

Benefits of CBN Grinding Wheels

CBN is well-known throughout the industry as the best suitable grain for grinding hardened alloys since it does not generate a high temperature. This stability is due to the fact that CBN has a good conductivity for temperature; therefore the heat generated disperses quickly, helped by the shape of the metal body of the wheel. Further, grinding wheels feature an extremely long working life and an excellent rate of stock removal, which is the maximum amount of removal of material from a workpiece, which means the operator does not need to go in after to dress and shape the workpiece. In the end, CBNs produce the best of both worlds. Low heat and precise shape.

The lifespan of CBN wheels is extremely long and nearly indefinite when cared for properly. The wheels feature a strong nature because of the bonding that takes place between the supporting steel hub and the grains.

Hi-Tek Manufacturing CBN Grinding Processes

At Hi-Tek Manufacturing, we offer only the best in CBN grinding wheel products to produce your finished parts.

Here is our top CBN product that we provide our aviation and power generation turbine engine manufacturers:

5-Axis CBN Grinders

Our 5-axis CBN grinders generate radial features on highly complex nickel and cobalt turbine components to accommodate the processing of parts as large as 36" x 36" x 36". These grinders feature central coolant systems that provide ultra-filtered and temperature-controlled grinding oil that distributes oil at a constant rate to deliver ultimate process performance. Our segmented nozzles, vanes, and shrouds are routinely produced to fulfill the stringent standards of the aviation and power generation turbine engine manufacturers that we proudly and regularly serve.

If you need more information on our CBN grinding wheels or any of our products, request a quote or contact us to simply ask us more questions about how we can help you.

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