Milling Machine NVX 5100 2nd Generation Milling Machine NVX 5100 2nd Generation

NVX 5100 2nd Generation

Best-ever high-precision vertical machining center
Max. X travels 1,050 mm
Max. Y travels 530 mm
Max. Z travels 510 mm
Max. table load 1,200 kg
Table length 1,350 mm
Table width 600 mm
Control & software alternatives

CELOS/MAPPS

Our new facility is opened

Our new facility is opened.
We’re excited to announce that our new working environment is finally operational.
And we are glad that we are going to be able to offer our customers more production capabilities than before.
The construction of this 1000m2 building was realised in 2019-20 as a product of the development of our successful business during the previous years.
Our facility is equipped with modern CNC metal cutting machines.
We are continuing towards our goal of expanding machine processing capacity.
Supporting clients in their projects is our priority.

The process of making hexagonal and square technical holes

One of the most interesting types of production that we came across in the past period is the processing of hexagonal and square holes, which has a more popular term – broaching.

At the first sight this type of processing may look complicated, but is quite simple actually. The tool’s integral parts are the carriers and cutting bit that can have different shapes, depending of the desired shape of the technical hole.

On the photo bellow you may see an example of the finished piece:

Photo 1. Threaded plug Hexagonal 10

For this piece we used a tool set from Garant Hoffmann Group.

Hexagonal, square, triangular, torx and so on are just a few most usable forms of this tool, as there are literally an infinite number of combinations.

Photo 2 shows a set of cutting bits for hexagonal processing, with sizes from 6 to 17 mm.

Cutting bit is assembled on the carrier which allows a free rotation of the axle and lathe processing. The tool is usually tilted for 1 degree which allows the cutting process.

Photo 2. Hexagonal cutting bits

The workpiece is prepared by pre-drilling a hole of the appropriate diameter (relative to the size of the hexagonal cutting bit), and then the edge is deburred in order to make more controllable cutting process.

The workpiece is tightening in the clamping head of the lathe and rotates as the tool approaches to it. At the moment of contact between the tool and the workpiece, they start rotating together and, due to the tilt mentioned above, cuts the tool’s profile.

It is interesting that in this type of processing, the chip has no way to get out of the technical hole, as the tool pushes it in front making chip remnant in case of the hole.

Photo 3. Cutting edge of the insert after about 600 pieces

For this reason, a deeper hole is drilled in order to ensure that the hexagonal shape is of adequate depth, and the finish ends with another pass of a drill with slightly smaller diameter, which cleans the previously deposited chip and produces a technically correct piece.

It is also worth noting that this method of making hexagonal holes is fast, economical and with satisfied precision.

Materials that can be processed in this manner should be softer.

It is desirable to cool the cutting zone with cutting oil, or concentrated emulsion.

Visit to the HAAS Automation manufacturing facility

This year’s visit to the HAAS manufacturing facility, organized by Teximp company was held in mid October.

It was a conceived as whole day visit, and it started with the presentation of the newest machines, as well as HAAS vision of the company future and innovations which are yet to come.

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Slika: Haas fabrika

Together with the newest machines, a VF mill with the serial number “1” could be seen in the HAAS showroom.

It’s name – VF, which is kept to this day for the machines of the same type, stands for “very first“.

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Photo: VF mill

It’s body is made of plastic, dimensions small and it’s machining capabilities far from its successors, but it stands as a clear example of the philosophy on which HAAS has built its brand – machines available to anyone, capable of performing high precision machining.

The factory tour followed, starting with the administrative offices, and then through the manufacturing and assembly areas, walking on the catwalk, high above the machine level, giving a great perspective of the size of the plant and the complexity of the manufacturing processes and logistics involved.

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Photo : Group from Serbia

Our group then had a guide assigned, and the tour was continued riding a small vehicle through the factory halls, while the guide explained which parts of the manufacturing or assembly processes were performed in the area we were being driven through.

The tour was concluded with a traditional American barbecue, exchanging expressions and the newly gained knowledge in a friendly atmosphere.

Miloš Petrović
HDDSMachining

CAD and CAM software

HddsMachining owns licensed CAD and CAM software from the AutoDesk company which enables us to go through all the phases of design and modeling.

AutoDesk Inventor + HSM is a complete solution which rounds up all the processes involved with engineering activities before the production, starting with the development of the 3D model of the part, 2D drawing or blueprint generation, completing the cycle by generating cutting strategies for the given part.

The result is a document containing G-code, which actually presents a series of instructions and commands which are used by the machine for manufacturing.

Our engineering team is ready to answer all our client’s demands, whether they are about the development of the new products or adaptation and optimization of the already existing ones.

The definition of CAD and CAM software

CAD (Computer Aided Design) represents a group of software tools intended for computer design of 2D and 3D elements. Examples of the most common CAD softwares are AutoDesk’s Inventor and Autocad, SolidWorks, Catia, ProEngineer etc.

CAM (Computer Aided Manufacturing) is, unlike the CAD software, designed for defining all of the manufacturing parameters.

This type of software define the tool trajectories, tool and machine selection, they offer graphical simulation of the machining process and generate the G-code, which is gives the machine a set of instructions in order to perform the necessary actions.

The most famous CAM softwares are MasterCam, SolidCam, Delmia, HSM etc…

Why are we running a blog?

Manufacturing is a dynamic process and its success depends on a large number of factors and parameters. Surely, the level of technical knowledge and experience is decisive, but you can never rule out creativity and teamwork.

Synergy of these factors results in an optimized process and raises the overall quality, both the product’s and of the overall business.

Each of these factors carry their own solutions and work algorithms, hence, knowing the laws of their nature is often deciding when optimizing the prototype design times or manufacturing of a series of parts.

For that reason, HddsMachining’s engineering team came up with an idea to share some curiosities and problems from the world of machining, in a series of informative-educational texts, targeting anyone who finds this area interesting.

We hope that, by doing this, we will de-mystify certain situations and processes which are encountered by anyone who is entering the world of machining.