Milling instead of grinding - with the hand angle miller - for a perfect weld root preparation

In use for 20 years - presentation of the award-winning milling discs from MAIJA-Frästechnik GmbH. A view on history and future as well as the benefits for your health, economy and ecology.

ID: 1566104
recent pressrelease next pressrelease

(PresseBox) - While visiting a steel company in Wuppertal (Germany) the concept was formed to eliminate the grinding dust. In this company four employees have been working on ship bulkhead doors for shipyards in a production hall of around 150 m, even the lunch boxes and coffee pots have been black from the dust. In the 21st century often so called ?silicosis?, even more chrome / nickel particles in urine and lungs get diagnosed as carcinogenic. Especially chrome and nickel are triggers for lung diseases like CPOD and cancer.

To solve this problem, the idea arose to use the hand angle grinder, which has been known for about 70 years, to mill either electrically or pneumatically by hand. By that time, milling was only possible with stationary CNC machines or rotary cutters.

Starting in 1995, the tooth geometries for aluminum construction have been developed in a series of prototypes and user tests in various industries. In 2000, the milling discs finally were patented, and have been continuously developed since then. This also includes adaptions of the teeth geometries for various other materials like steel, stainless steel and titanium, depending on the different cutting speeds.

The discs are made of carbide, and have been developed as single and double-sided versions. While the single-sided milling disc is used for chamfering, deburring and removing weld seams, the double-sided milling disc is used to open and prepare weld seams. In 2019 the development of a new version of double-sided milling which can be used for both, chamfering and weld seam opening, discs has been finished.

Due to the combination of the two variants the need to frequently change tools when different work has to be carried out becomes unnecessary.

Both, the single and double sided milling discs are available in the default sizes from 70 mm to 150 mm. In addition, there are pneumatic tools developed for the use with the milling discs, using optimized rotation speeds and torques for the different materials and disc sizes. By the end of 2022 the product range will be expanded to 180 mm and 230 mm.



The milling discs have been developed with different toothing for every diameter and kind of disc. They range from coarse, for faster removal, to fine, with less removal, but a smoother surface. The specific toothing varies for the different materials. If needed, additional toothings and shapes are developed, to adjust them for specific work cases, materials or customer requirements.

The milling is characterized by:

chips (completely harmless) instead of dust

due to the special teeth geometry chips can be touched without gloves

hardly / no sparks

40-60

no structural change in the material due to heat

no material discoloration

metallic bright (no cavities while welding)

no release of respirable particles in stainless steel processing (chrome / nickel)

40% reduction of noise

the removed material is completely recyclable

the carbide disc is completely recyclable too

A view on health, economy and ecology:

Health

no dust ? no release of respirable particles that are injurious to health like chrome / nickel

no formation of flammable dust/air mixture

significant more concentrated work possible ? decreased sources of danger like heat or flying sparks when working with milling discs

little effort for the user - the milling disc takes over the machining process - only little pressure is required

less vibrations (white finger disease / VWF, vascular spasm)

lower noise emissions

protection of the direct environment

Economy

little storage space required for the milling discs - thanks to service lives of up to 300 hours (depending on the material)

efficiency: depending on the material, 40-70% faster removal rate than with grinding wheels

processing in closed rooms - low fire protection effort for the user and the environment (e.g. warehouse goods)

less machine wear - because no dust gets into the machine

Ecology

the removed material is completely recyclable

avoidance of waste - thanks to carbide milling discs that can be regrinded up to seven times

complete recycling of the carbide if it can no longer be regrinded

The experience of the past 20 years (more than 4000 units sold) shows that working with the hand milling cutter represents a significant physical relief, especially for women.

The location-independent usage on structures weighting tons, e.g. turbine construction, brings a number of advantages. This includes cost and time reduction due to an omitted, logistical complex transport of the structure to the processing location.

Furthermore, already painted finished parts in the direct environment get preserved, as the chip contains neither high energy nor temperature.

The development of milling discs and machines according customer-specific requirements is also implemented within the scope of the technical possibilities.

Maija-Fr

Today it supplies the metalworking industry worldwide in a wide variety of sectors, including ship and yacht construction, container construction, commercial vehicle construction, rail vehicle construction and foundries.

The milling discs were awarded with the German prize for resource efficiency in 2015 - the Federal Ministry of Economics and Technology honored Maija-Fr

Ministry and experts were convinced about the recyclability of the milling chips, which - in contrast to abrasive dust - can be reused without major effort.



More information:
http://https://www.g-sight.com https://



Keywords (optional):



Company information / Profile:

Maija-Frästechnik GmbH, founded in 2012, develops, produces and sells high-quality milling tools made of hard metal. The company owns the patent for milling discs, which was registered in 2000 by the later company founder.Today it supplies the metalworking industry worldwide in a wide variety of sectors, including ship and yacht construction, container construction, commercial vehicle construction, rail vehicle construction and foundries.The milling discs were awarded with the German prize for resource efficiency in 2015 - the Federal Ministry of Economics and Technology honored Maija-Frästechnik GmbH for the efficient use of limited resources in 2015.Ministry and experts were convinced about the recyclability of the milling chips, which - in contrast to abrasive dust - can be reused without major effort.

PressRelease by

Requests:



PressContact / Agency:



published by: PresseBox
print pressrelease  send to a friend  

Date: 03/30/2021 - 08:00
Language: English
News-ID 1566104
Character count: 4169
Kontakt-Informationen:
Firma: Maija Frästechnik GmbH
Ansprechpartner: Feedback to businesspress24.com about Pressrelease-id:
Stadt: Ennepetal
Telefon:

Meldungsart:
Versandart:
Freigabedatum:
Comments:



Number of hits: 167

Linking-Tips:



Direct Link to this PressRelease:






We would appreciate a link in your News-, Press- or Partner-Site.

Comments on this PressRelease






All members: 9 439
Register today: 0
Register yesterday: 0
Members online: 0
Guests online: 89


Don't have an account yet? You can create one. As registered user you have some advantages like theme manager, comments configuration and post comments with your name.