Norton superabrasive grinding wheel

As described by Hitchiner 2 and Upadhyaya 3, 4 , wheel wear and grinding power of new plated wheels tend to increase quickly during break-in, where only the tips of the highest grains are cutting the material, leading to a lower active grit density and rougher surface. However, this break-in period is often short, replaced by more stable grinding where rates of change for wheel wear, power, and surface finish can decrease by up to 10x after the initial break-in rates.

Wheel failure tends to occur once the grains have worn, causing grinding power to increase and surface roughness to drop, often resulting in workpiece burn. The final performance is only partially a function of the wheel. The final stress-state of the abrasive grain is a result of thermal and mechanical wear, which are driven by machine parameters, coolant, and lubricity. Once the entire system has been evaluated, focus may be placed on designing a grind cycle that promotes micro-fracture and self-sharpening wheels.

If the wear modes are observed when using single layer products, it is recommended to check troubleshooting topics to improve the wheel performance and part quality in the application. We use cookies in order to improve site performance, offer you a better browsing experience and enable you to easily share content. Cookies are pieces of information stored on your computer in simple text files which our server can read and record.

These files do not contain any sensitive information. By continuing to browse our site, you agree to the use of cookies. Home Resources Expertise Superabrasive Grinding On March 12 Grain micro-fracture is favorable for consistent, predictable grinding Structure To understand the wear mechanisms in single-layer CBN wheels, it is first important to understand their construction.

Single-layer wheels typically consist of a steel core that has been machined or ground to a specific size and tolerance. Next, wheels are masked to keep only the abrasive regions exposed and the CBN grains are then tacked in place.

The wheels are submerged in an electrolytic solution, and a current is passed through the wheel and solution, which draws the Ni-based bond onto the wheel as a cathodic reaction occurs 2. Manufacturers can control the thickness of the bond layer by varying the amount of time the wheel is plated. Wear mechanisms Hitchiner 2 , Malkin 3 , Upadhyaya 4 , and Ding 5 all describe four possible modes of wear in grinding with electroplated products.

A visual summary of the four common wear modes is included in Figure 1 below. Figure 1: Four common wear modes in single layer superabrasive grinding wheels.

Performance characteristics Assuming a grinding process has been developed that results predominantly in micro-fracture of CBN grains, common and predictable wheel performance trends are often observed with single-layer wheels.

Troubleshooting guide The final performance is only partially a function of the wheel. References Norton Saint-Gobain. Superabrasive Wheels for Industrial Applications. Hitchiner, Mike, et al. Stock resin-bonded wheel used for thread grinding. Additional specs for abrasive and super abrasive thread grinding wheels available upon request.

Lower your total per-part grinding costs with our selection of toolroom grinding wheels that deliver precision part quality finishes in many applications. Available to fit many sizes and specification of machines with speed, quality and finish in mind. Review our selection include ID and bearing wheels, cylinder wheels, and other shapes. Norton surface grinding wheels and segments are a universal choice for heavy, rapid stock removal and production work to precision tolerance operations.

Grinding wheel segments are generally used to grind flat stock or flat surfaces within a workpiece for anything from heavy stock removal to precision grinding. Available in a variety of shapes, sizes and grain types to meet your job requirement. Cylindrical grinding wheels are typically used in the transportation and toolroom industries and are ideal for medium to heavy stock removal.

If you are concerned with wheel life and total per-part grinding costs, our cylindrical grinding wheels increase production and decrease cost. Achieve extremely close tolerances with Norton centerless grinding wheels. Whether through feed, end feed or in feed grinding, our centerless grinding wheels give a precision finish. Reduce cycle times, increase material removal rates and improve productivity with Norton creepfeed grinding wheels. Our creepfeed grinding wheels excel at OD and precision grinding applications, especially when working with aerospace and engine components.

We use cookies in order to improve site performance, offer you a better browsing experience and enable you to easily share content. Cookies are pieces of information stored on your computer in simple text files which our server can read and record. These files do not contain any sensitive information.