Category: cnc machining services

What is the difference between milling and CNC Milling?

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First and foremost milling is the manufacturing process whereby machines use shear tools/cutters to rotate and remove material out of a station called a work-piece at a certain direction.

CNC Milling on the other hand is a particular form of Computer Numerical Controlled machining whereby computer programs are used to calibrate and program the way the machine should work.

CNC milling machines have got to be the most popular out of milling machines simply because of its automation. These machines are differentiated according to the number of axes that the programs operate on. The more axes, the better the functionality. The axes, tagged by different letters like the X and Y axes, represent the horizontal direction on the work-piece (forward-and-back and side-to-side) on a flat station. The Z axis is for a vertical, up and down movement and the W axis is designated for a diagonal representation across a vertical area.

CNC machining centers nowadays use advanced 5-axis machines that operate on Computer Aided Manufacture programs for ultimate performance. These machines are helpful because they are able to produce any kind of shape and size that manual machines could not. Operating on angles of 180 degrees or higher is an additional advantage of the CNC Milling machines

The rigidity and strength of the work-piece and the cutting tool must be factored because of the intensity and precision of the process involved.

Precision cnc machining and processing of high precision mechanical parts

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For the production of high precision mechanical parts after the passage from the lathe machines it may be necessary to rectify an additional treatment of the grinding components. This adjustment allows you to also eliminate the last residues of material and to obtain a component conforms exactly to the project.
On high-precision cnc machining parts can be performed so additional processing to further improve the surface of the component. After washing the components in tanks of solvents, which are used to clean the material from all impurities, you can proceed, for example, the burnishing or nickel plating. The T.M.G. It performs at the request of high precision mechanical parts treatments to ensure a perfect finish of the components, as in the medical or hydraulic industry.

In pressurized circuits hydraulics the perfect calibration of the components is a prerequisite to ensure the watertight integrity of every detail and also the processing of materials is carefully evaluated to ensure reliable assemblies.

The precision cnc machining of high precision mechanical parts therefore not only limited to the realization of the structural part of the component but requires complex operations which give the original material in a high capacity for endurance of workloads can occur over time. Only when all the stages of preparation of the component respond to the fulfillment of the requirements in the design phase will start production of the component in the guarantee of an excellent quality standard

Brass in precision cnc machining, wath you need to know

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In precision cnc machining, brass is an oxidizable alloy formed by copper (Cu) and zinc (Zn) and optionally other elements. They say the brass rails formed only of copper and zinc, ternary those in which there is another element and quaternary ones where there is a quarter of a chemical element that characterizes the league.

For the brass binary one speaks of α phase when the zinc content is less than 36%. These brasses have an excellent cold workability (drawing and molding) and a good hot workability. The alloys with a 45% higher percentage of zinc have no practical interest.

The copper-zinc binary, also in precision cnc machining work progress, alloys are normally machined by numerical control machine (CNC machining precision), but their toughness causes the formation of very long chips. To obviate this drawback it adds that of lead, remains completely separated from the alloy and, due to its lower melting temperature, is the last element to solidify. So, it will be distributed to the edges of the grains of the copper-zinc alloy making very short chips or even dusty and safeguarding cnc machining services.

The brasses are also referred to lead-dried brass and are used for the pieces machined on a lathe, such as valves and faucets. CuZn39Pb3, in particular is used for gears, pinions and for all those details to complex shapes requiring a machine tool working by removal of very high-speed chip.

Any info about precision cnc machining? If you need more info or a free consulting please contact us: +39 0442 412271 – info@meccanicatmg.it

All about milling machine, the heart of precision mechanics

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The milling machine is the heart of precision mechanics, a very important tool used in cnc machining services to work into complex shapes metal parts or other materials of spherical shapes.

There are two main types of milling machines, both with a horizontal plane x-y. The first, the vertical, has the engine mounted on a z-axis, for which the movement on three axes allows the machine to make holes or reaming; in that horizontal, instead, the motor is placed on a lateral guide and makes it similar to a large circular saw. It is mainly used to realize slots, grooves and continuous pockets.

In these two types of milling machine are added the so-called “machining centers”, which have a fixed desk, and the motorized head that moves along 4 or more axes.

The CNC milling machines have an accuracy of up to the order of microns (0.001 mm), although they require special working conditions such as an air-conditioned environment, a solid base of support, temperature sensors on the axles, optical guides.
Normally, milling machines are very solid, because they have to absorb the vibrations generated by motorized head without losing precision, why, when performing work on very hard materials or at very high speeds using special lubricants to optimize the cooling of the tip and to reduce the efforts.

Realizing mechanical details with precision CNC machining

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CNC machining? The TMG company deals with design and implementation of specific machine components and adapted to different industrial sectors.

TMG uses the latest technology and the help of a park machines of the highest level such as lathes and CNC precision machining and milling machines, allowing the company to produce high-precision mechanical parts for every specific need and in different materials.

For numerical control, or CNC refers to a programmable electronic system that allows a machine to perform a task cyclically, without human intervention. In this way, the machines work at predetermined pace and in a much more fluid, allowing also a considerable rapidity in the performance of designs.

When a company, such as agricultural, needs a particularly high precision mechanic, send a request to our company. TMG, then, creates a technical drawing, where necessary, and produces a basic budget to be submitted to the client. In case of acceptance of the quotation, TMG provvere processing of mechanical part.

TMG follows the creation process step by step, adapting – when possible – their work to the needs of the customer.

Do you need info about CNC precision machining?

Please contact us: tel: +39 0442 412271 
Email: info@meccanicatmg.it

The galvanizing in CNC machines

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In CNC machines, the galvanizing is the process by which it is applied a zinc coating on a metal object, to protect it from galvanic corrosion. Generally coats the steel: being electronegative, and then that is less noble than steel, carries a cap for electrochemical action also called cathodic protection. Furthermore, forms a barrier that isolates the steel from atmospheric agents.

Not used CNC machining CNC machines for this process, but it is treated in the traditional way. One can distinguish various forms of galvanizing:
• Hot
• continuous hot.
• Electrolytic;
• cold;
• spray.

In the first case, we proceed by immersing the sheets or the products to be treated in tanks containing molten zinc at a temperature of about 450 ° C. That is continuous hot as the previous one, but is performed on tapes or steel wires that allow to manage many pieces.
The electrolytic galvanizing is achieved by immersing the material in an electrolytic solution that contains salts of zinc. Finally it creates a current flow that makes deposit the zinc metal on the workpiece surface.
That cold is not a galvanizing in the strict sense of the term, but it is more comparable to a painting of the bottom, while the spray provides that the molten zinc, finely pulverized, is sprayed on the steel surface, previously sandblasted to white metal

Realizing mechanical details with precision CNC machines

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The TMG company deals with design and implementation of specific machine components and adapted to different industrial sectors.
TMG uses the latest technology and the help of a park machines of the highest level such as lathes and CNC Precision (CNC) machines and milling machines, allowing the company to produce high-precision mechanical parts for every specific need and in different materials. Approfondisci “Realizing mechanical details with precision CNC machines” →