Read our BROCHURE: BRAZING FOR TOOL MANUFACTURING
The production of brazed tools, in every field and application, requires top quality row materials and a high level specialistic know-how.
But what do we mean by “brazed tools”? What are their applications and purposes?
WHAT “BRAZED TOOLS” MEANS
In every brazed tool, body and cutting edge are joined together through a brazing process.
The features of body and blade are different, so they are realized with different materials.
The body (resistant and durable) is usually made of steel. In case of breakage of the blade, the body is usually intact and reused. On the other hand, the blade could be often replaced in case of damage. Blade is made of materials that could be grouped into two macro-categories:
- Based on powders of diamond;
- Based on cemented carbides.
Brazing is able to guarantee a very strong joint between body and blade, the essential condition to respond to the great effort during material cutting.
A WIDE RANGE OF TOOLS
There is a wide range of brazed tools which have different shapes and dimensions, in accordance with their purposes. Some of the most common brazed tools are: saw blades, diamond wires, milling cutters, drills and core bits, but also chippers, tools for medical field, digging tools, agriculture tools… And the list is still long!
APPLICATIONS
We find brazed tools in several fields, for working very different materials:
- Wood
The purposes of wood-working tools are many: cutting of trunks, debarking, refinement of semi-finished products and profiling.
- Aluminum
- Plastic
- Marble, granite and other natural stones
Tools are used for mining, cutting into stone slabs, shaping and finishing.
- Concrete
Tools for working concrete are generally used for cutting, drilling or coring.
- Ferrous materials
Again, the aims are various: from rough grinding, to finishing and super-finishing.
- Heterogeneous materials
It is the case of well drilling, tunnel excavation, mining processing or tillage. For heterogeneous materials, tools should be resistant but also economical, because they are subject to unavoidable breakings and replacements.
BRAZING ALLOYS FOR TOOLS
A lot of brazing alloys, of different materials and make-ups, are used to realize the wide range of tools.
- Materials
There are a lot of suitable alloys, from the most expensive alloys with high amount of silver, to more economical ones with a small amount of silver or even without it. In addition to silver alloys (the most common ones), there are normal or special brasses, copper alloys and nickel alloys.
- Make-ups
The make-ups are numerous: rods, wires, strips, trimetals strips, powders, pastes, preforms from wire or strip.
- Brazing processes
The joint between tool’s body and cutting edge can take place through torch brazing, generally in case of non-automated processess, or induction brazing, for series production. Sometimes resistance brazing is used and, in specific cases, also furnace brazing, with protective and vacuum atmosphere.
DIFFERENT NEEDS, ONLY ONE SUPPLIER
Every company requires different technologies in order to respond to market demands: Stella offers complete solutions to each one of them. We supply more than 500 manufacturers of tools worldwide, with high quality alloys and prompt technical assistance.
If you are looking for a supplier of brazing alloys, but also a reliable, expert technical partner, contact our sales department. We put our experience to the service of your business.