Band Saw Blade Steel Strip

Band Saw Blade Steel Strip

Bandsaw blades for metal fabrication must be tough enough to withstand impacts from sawing bundles and shapes. They must also be capable of delivering a good cut without overworking the material.

Waelzholz Brasmetal produces a band saw blade steel strip that meets the most exacting requirements. The edges are skived at the customer’s request and have perfectly right-angled faces.

Quality Control

Choosing the right band saw blade steel strip for an application is vital to the quality of your cuts. During the steel strip manufacturing process, electric arc and basic oxygen furnace techniques ensure precise control over chemical composition Band saw blade steel bar and material purity. Each strip is then rolled to the desired thickness and width, before being joined end-to-end using a precision welding process.

The resulting bimetal strip is then heat treated to create the hardness required for your specific cutting needs. The alloy spring steel that makes up the body of a band saw blade is then welded to a high speed steel material that forms the tooth tips. Depending on the material being cut, surface coatings can also be applied to further enhance wear resistance and increase the efficiency of the blade.

Structural materials such as copper tubing and aluminum shapes pose unique challenges for bandsaw cutters. They have low melting points, which can cause the blade’s teeth to load molten material in the gullets and cause them to glaze over. This can reduce the lifespan of a blade and negatively impact cut quality. To help combat this issue, some manufacturers have opted to use carbon blades with a higher tooth pitch to provide a coarser cut and minimize the amount of slag generated. This is a cost-effective solution that also improves the performance of these blades.

Precision Welding

As an extremely complex tool, the metal band saw requires optimal cutting results and a high level of performance for a long service life. To achieve this, the metal band saw must be equipped with the right accessories that are specifically suited for the specific requirements of the application.

This is especially important when sawing nonferrous materials. These materials typically include aluminum, copper, tin, zinc and their alloys. These materials present unique cutting issues that require the attention of a skilled saw blade expert. These include material abrasiveness, gummy characteristics, blade chip loading tendencies and maintaining an optimal blade speed.

Using a bi-metal blade can help overcome these challenges and ensure that you get the quality cut that you need. A bi-metal blade combines the flexibility of the carrier strip with the strength and durability of the HSS flat wire that is welded to it. The steel used to make the flat wire is melted and then bonded by various methods, including electron beam welding or laser welding.

The result is a band saw blade that can withstand the pressure of nonferrous cutting while also delivering the speed and precision that you need. A skilled team of precision welders can ensure that the production process runs smoothly, allowing for the accurate fabrication and assembly of these complex and demanding pieces.

Diffusion Bonding

The quality of the backing strip for metal band saws is crucial for their performance and durability. It must be able to withstand the high cutting loads and demanding conditions such as sawing bones or meat. This places demands on the material’s properties such as clean cuts and stability in cyclic bending. In addition the strip must have precisely defined weldability to enable attaching the tooth tips made of wear-resistant carbide grades. Waelzholz Brasmetal achieves this through a special skiving Tinplate Sheet supplier process. This results in perfectly right-angled and smooth edges. This enables the teeth to be welded on to the longitudinal seam of the strip.

Nonferrous materials such as aluminum, copper and brass are challenging to cut. They have low melting points compared to harder materials, and require saw operators to contend with factors such as their gummy characteristics, blade chip loading tendencies and blade gullet capacities.

Bimetal saws help overcome these challenges by using an optimum mix of hard and soft materials. These combine to deliver improved machinability, increased blade life and higher cutting speeds than carbon blades. However, a bimetal blade requires much more precise tolerances than traditional HSS saws. To ensure this, the metallurgy and geometry of the backing strip are carefully optimized for the specific application. This is one of the key areas of expertise at MEBA.

Finishing

When cutting metal, the quality of the blade is crucial to ensuring a clean cut. To keep the blade sharp, bi-metal blades are welded to alloy steel backing strips that are specially processed. The resulting bi-metal saw band has a long life and provides superior results over standard carbon or high-speed steel blades.

Fabrication shops often use band saws for a variety of different cuts, including structural shapes and high-efficiency bundle cutting. This means they need to either have a dedicated saw and blade for each type of work, or use one blade that can handle the mix of materials being worked in the shop.

The machinability of metal determines how fast a blade can be run, so it’s important to check with the blade manufacturer or the specific material being worked on for a recommended speed. Overloading the blade or using a higher than necessary speed can damage the tooth tip and lead to premature wear.

Another way to avoid unnecessary stress on a blade is to monitor the blade for signs of trouble. If a blade starts making unhealthy squealing or grinding-type noises, it’s time for a tune-up.

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