Grinding

The skyline's the limit for this grinder

07/06/2021

Author:

The ShapeSmart model NP50 is a five-axis “pinch/peel” grinding machine from Rollomatic that features unique technology for turning out nonround parts.

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Abrasive Technology receives investment by Blue Sea Capital

New opportunities are expected with the new investment in the company.

Norton Quantum Prime Grinding Wheels

Grinding Wheels Feature Proprietary Nano-Crystalline Ceramic Grain

Norton Quantum Prime Wheels have several important advantages including a new micro-fracturing grain that has unparalleled sharpness and cutting efficiency which reduces power draw and cycle times, while increasing material removal rates. The unique grain is free cutting, which combined with advanced bond technologies such as Norton Vitrium3, allows Quantum Prime to wear more consistently, improving part quality, geometry and finish even at high material removal rates.

PG-912DG Enclosed Centerless Form Grinder

Grinder Achieves Increased Throughput and Tighter Tolerances

Glebar pairs the wider work wheel with an oscillating regulating wheel powered by servo motors to reduce setup time and improve sphericity. The slides can be programmed to finite positions through a touchscreen HMI. When an operator selects a job, the servo motors automatically adjust to programmed positions which reduces setup time.

Why turn when you can grind?

The Weifuautocam Precision Machinery Corporation from Wuxi, China is using a Grindstar profile and cut-off machine from Junker for the production of adjusting screws for high-pressure hydraulic pumps. Weifuautocam, a part of the Weifu Group, began collaborating with Junker in 2000.

Episode 106: Understanding chatter

Jeffrey Badger, Ph.D., discusses the grinding principles at work that cause chatter in the 106th episode of The Grinding Doc video series.

5 reasons to upgrade to vit-CBN

05/07/2021

Author:

Augusto Naruse

Advice is given for switching from conventional vitrified grinding wheels to vitrified CBN when cylindrical grinding.

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Dress in the front or rear?

05/10/2021

Author:

Jeffrey A. Badger, Ph.D.

The Grinding Doc says there are four factors to consider: stiffness, cycle time, chatter and alignment

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Episode: 107: Grinding, a pictorial odyssey

For twenty-five years I have been taking electron-microscope photos of grinding wheels, grinding grits, grinding swarf, ground workpieces and dressing diamonds. Why?

When I’m giving a course and flash a photo of grinding swarf, a dull grit in a grinding wheel or a worn diamond, people’s eyes pop out. Many have worked in grinding for 20 years or more but have never had the chance to visualize grinding up close. It changes their perspective — and helps them learn the material quicker and, consequently, improve their grinding.