Production Industrial Engineering - Industrial Engineering of Production Processes.
Grinding - Productivity Science
Over the last century, substantial advances have been made in scientific understanding of grinding processes, machines. Progress has been made in related elements, control systems, materials, abrasives, wheel preparation, coolants, lubricants, and coolant delivery.
The application of scientific principles and engineering ingenuity has led to the development of new grinding processes, abrasives, tools, machines, and systems. The relationships between scientific principles and new techniques have yielded improved productivity and better quality. Productivity improvement always maintain the quality achieved till that time. Quality improvements assess the productivity implication of quality improvement ideas. Thus productivity and quality go hand in hand as process innovations. This how F.W. Taylor developed his productivity improvement methodology.
The productivity and quality improvement achievements so far point towards further advances that can fruitfully be pursued. The applications can range from grinding very large lenses and reflectors through to medium size grinding machine processes and further down to grinding very small components used in micro electro-mechanical systems (MEMS) devices.
The material to be ground range from conventional engineering steels, through to aerospace materials, ceramics, and composites.
Among the new technologies that have a potential to improve productivity, are artificial intelligence and robotics to improve precision, process efficiency, and features required to integrate grinding processes into wider manufacturing systems.
2022
Productive Grinding of Superalloys
Unmanned cylindrical grinding processes for small series.
Cutting Tool Engineering, April 22,2022
Various options for optimization and improvement for new grinding machine applications
UPGRADES – Increasing the productivity and efficiency of grinding machines
2021
Norton Abrasive Solutions for Robotic Applications
On 02 September 2021
https://www.nortonabrasives.com/en-gb/newsroom/news/norton-abrasive-solutions-robotic-applications
Norton boosts grinding productivity to the new level of efficiency
On 15 June 2021
The industrial grinding process' efficiency is characterised by a significant increase in material removal rate (MRR) and a workpiece high quality plus a reduced need of resources, including power, workforce and parts costs. Designed in 1999, the original Norton Altos precision shaped grain has revolutionised high stock removal grinding. Today, the new AltosX with Norton QuantumTM technology boosts grinding performance to a whole new level, delivering unparalleled cutting efficiency.
The Norton QuantumTM advantage
Testing has shown that AltosX is more efficient than any other wheel on the market, delivering twice higher material removal rate at the same power level. Due to upgraded grinding parameters, the wheel allows unrivalled MRR and better part quality, minimising the rejection rate and reducing cycle times, providing actual cost savings and productivity improvement.
https://www.nortonabrasives.com/en-gb/newsroom/news/norton-boosts-grinding-productivity-new-level-efficiency
Recovery of abrasive grains from grinding wheel waste
JUNE 8, 2021
Last year, the International Journal of Applied Ceramic Technology published two special issues on ceramics for the circular economy.
Sabarinathan Palaniyappan, postdoctoral researcher at the Sri Sivasubramaniya Nadar (SSN) College of Engineering in Chennai, India, has focused on recovering abrasive grains from grinding wheel waste using both mechanical and chemical methods. He has specifically focused on recovery from vitrified grinding wheels, which use a glass or glass-ceramic bonding material to fuse abrasive grains to the wheel. The papers (4) are summarized in the article.
https://ceramics.org/ceramic-tech-today/environment/recovery-of-abrasive-grains-from-grinding-wheel-waste
Advances in fabrication of ceramic corundum abrasives based on sol–gel process
Chinese Journal of Aeronautics
Volume 34, Issue 6, June 2021, Pages 1-17
Open access
2020
Norton 4Sight Process Monitoring and Diagnostic System
Make assured, informed, and fast decisions with Norton 4Sight process monitoring and diagnostics system. With real-time data gathered through the 4Sight system, you’ll have the insights you need to optimize your process for improved operating performance, wheel life, work piece quality, and system productivity.
Turn your machine into an Industry 4.0 grinding system and grind smartly with instant notifications, real-time dashboards and historical analytics.
Historical data storage to monitor machine utilization over time and evaluate trends
Immediate visualization of key data to maximize performance, productivity and efficiency
Flexibility to create, store, and export records of all grinding process data for future analysis
Grinding - Science and Engineering Developments in 2019
OCTOBER 9, 2019
Researchers develop new technology for precision grinding
by Kaunas University of Technology
In precision glass moulding, that allows the production of optical components from glass without grinding and polishing, hard and high-temperature resistant mould materials, such as tungsten carbide, are being used.
Grinding tungsten carbide in order to make the cylindrical details used in the moulding of optical elements is challenging. First, it is a very hard material, so any tool contacting with it is being worn almost instantly, second, a tool inserted too deep into the surface of tungsten carbide, breaks. The workpiece needs to reach plastic deformation state, when it can be shaped and formed without breaking of the tool.
Some researchers used the ultrasonic excitation of the tool used in machining/grinding tungsten carbide. —the tool starts vibrating and the vibration is transferred to the workpiece. The higher the frequency of excitation, the better the chances of achieving the state of plastic deformation of the material being ground. In a laboratory environment, it is possible to achieve the excitation frequency needed for plastic deformation using nano-scratching but so far it has been impossible to reach these frequencies in industrial conditions.
In the current research, the focus was on the excitation of the workpiece rather than the tool. The achieved frequency was 80-100 kHz and this can be useful in industry. A patent application was made.
https://techxplore.com/news/2019-10-technology-precision.html
2013
Influence of Process Parameters on Grinding - A Review
(Number of equations involving surface finish and grinding parameters are given).
May 2013
Ch.Srinivasa Rao
https://www.researchgate.net/publication/283712914_Influence_of_Process_Parameters_on_Grinding_-_A_Review
Grinding Process History
2017 - EP3115149 - METHOD OF GRINDING A WORKPIECE HAVING A CYLINDRICAL BEARING SURFACE AND METHOD FOR DETERMINING PROCESSING PARAMETERS
(Crankshaft grinding patent)
https://patentscope.wipo.int/search/en/detail.jsf?docId=EP190402129&_fid=WO2017005577
1917 - Patent for Centerless Grinding
https://patents.google.com/patent/US1264929
Updated on 3.5.2023, 25.5.2022, 7 March 2020, 4 January 2020.
Thank you. Informative post. I'll probably return because I like this site. It's useful and instructive. Visit a S235JRH Tube website for pipe details.
ReplyDelete