Profile bending machine

2017.06.23

When you should need at and can replace standard tube bending? Profile bending machine or section bender or “3 rolls tube bending machine” is the machine to use principle of driven rollers and the force of the middle roller to form the bend. But we will not talk about the technology so we will talk when you can use it…

Main restrictions of the possibilities are small radius bends. So to form radius with 3 or better 5 diameters of tube is not the problem but with tight radiuses – forget about this type of the machinery. So it is not the machine for industrial pipelines or connections but the good machine for design and architecture, spirals and some outdoor products, greenhouses tubes.

The investments could be very low for small machinery. Machines are very simple, with mass market and a lot of manufacturers it the world so if you do not have really special product (for example to make the cabin profile with different radiuses in one cycle) you can easily find the machine with your budget and necessities. Do not ask a lot of this type of the machinery but know that real CNC versions could be very interesting to change radius. Some German and Swiss companies offer the precise versions – with more hard price but to make more precise parts for the field, for example for boat railing where pair of tubes needs to be really mirrored without any difference.

Every time note that profile bending machines has the specialization for the profiles. It is very complicated to deal with bar or beam with tube bending machine so profile bender is only choice for this kind of applications. The machine possibilities are calculated for the bending of solids and not the hollow pieces.

Some economy about Italian machine tools

2017.06.22

Based on sources of Gardner Business Media and UCIMU Industrial association

Do you know how industrial is Italy? Let us see it in figures:

According to 2015 global metalworking machine tool consumption was USD 79,1 billion with the big down of 11,8% than it was in 2014. The full global Europe consumed USD 21,1 billion of machine tools. Italian industry is on the 6th place in global world consumers (after China, USA, Germany, Japan and South Korea) and on the 2nd in Europe (after Germany). In figures Italy consumed USD 3,136 billion with the increase of 9,4% than 2014. For 2016 global machine tool consumption stays at USD 79,9 billion which is nearly the same. Italy also takes 6th place for the year.

According to 2015 Italy stays at 6th position in global world of machine tools import with main import value USD 1,470  billion which is 47% of main consumption (First 5 places in world for import – China, USA, Germany, Mexico, Russia).

According to 2015 Italy stays at 4th place in the world for machine tools production (USD 5,797 billion) and 2nd in Europe after Germany. At first three places of top producers are China, Japan, Germany.

Export of machine tools in Italy is 3d place of global world (after Germany and Japan) with export value of USD 3,641 billion. Main consumers of “Made in Italy” machinery are Germany, USA, China, France and Poland.

In year 2017 different economic analysts expect the small but stable grow with the consumption inside Italy, production rise and the export value. Let us wait and see!

Waterjet cutting

2017.06.21

There are a lot of talking what are the differences, advantages and disadvantages of different cutting technologies. Unfortunately, even sales managers of manufacturers companies do not have all the information and try to offer for the potential customer the machine he doesn’t need.

Waterjet is the technology to cut the materials with the water flow (for very soft materials) or water with the sand (which is normally common for the most applications). For waterjet possibilities there are no any differences with the materials – it could cut mostly all from plastic and resin till the hard metals.

Normally the use of waterjet cutting machine for classic sheet metal fabrication is very low. There are some applications and industries where you can’t work without the waterjet, for example to cut granite for indoor use. What are the main advantages? The first and important for some industries like aerospace that waterjet cutting doesn’t affect any material heating and change of the structure even for cutting edge. So this is the main difference between laser and plasma cutting. Second is the big thickness of materials with the clean and precise cutting edge. Imagine what does it mean to cut 50-100 mm thickness with the plasma and how big will be the burrs after melted metal. Moreover because of the technology there are no limits for metals, like, for example the situation with CO2 laser cutting when the degree of reflection for non-ferrous alloys is very high.

Not the main but important – with waterjet you can cut several sheets to put as the package. For sure as for the thickness of cutting you should consult with the manufacturer but sometimes it is the possibility to make the speed boost for the production. Moreover lots of waterjet cutting machines offer the swiveled cutting which means the cutting of tilted head for desired degrees.

Disadvantages? The main one is the speed because the waterjet cutting is incredibly slow. For this reason waterjet can’t be the competitive solution for thin materials and standard sheet metal fabrication workshop. If you do not have any special applications there are no reasons to study waterjet technology because it is for other things. Moreover you should consider about the maintenance because, for example, waterjet is very sensitive for water quality so you should be prepared for special installations to use it.