Brass Electrode Characteristics
- Electrode Spec Sheet
- Our brass electrodes come in both single hole and multi-channel (coreless) varieties, including web-type, two hole, three hole, and y-type electrodes.
- Our brass electrodes can be used with a wide variety of materials, such as: mild steel, tool steel, stainless steel, titanium, and hastelloy.
- Our brass alloy composition is 65% copper and 35% zinc (alpha brass).
- We offer brass electrodes in a variety of lengths from 4 inches (100mm) to 27.5 inches (700mm).
- Custom lengths are available upon request.
When Should I Use Brass Electrodes?
- When speed is important. Brass electrodes have a faster wear rate than copper electrodes, which results in a faster drill speed when the target material is not tough.
- When the workpiece or part you are machining is made up of relatively soft materials such as tool, stainless, or mild steel.
When Should I Not Use Brass Electrodes?
- When the workpiece or part you are machining is made up of materials such as carbide, tungsten or a mixture of tungsten carbide, brass electrodes will not be as efficient as copper electrodes, due to its chemical composition and disintegration rate.
- When you are EDM drilling through exotic materials such as carbon-carbon, sintered diamond, or silicon/silicon carbide.
Should I Use a Single Hole Brass Electrode or a Multi-Channel Brass Electrode?
Single Hole Electrode Tubes vs. Multi-Channel Electrode Tubes
The hollow portion of an electrode exists to facilitate the flow of dielectric fluid through the electrode. This serves to cool down the electrode, which is very important, as an overheated electrode can result in warping and a corresponding drop in precision. It also flushes loose material from the hole that is being drilled. Both types of tubing accomplish this; however, whether a brass electrode has a single hole or a multi-channeled hole running through its ID (internal diameter) often determines the ultimate success of EDM drilling through a material or work piece.
This is a consequence of the unique challenges presented by blind hole EDM drilling. Blind hole EDM drilling—as opposed to through hole drilling—penetrates a material but does not exit through the material. A single-hole EDM electrode does not spark where the hole is, and consequently leaves a nipple in the drilled hole. Multi-channel electrodes are built such that no one part of the target material is left unaffected by the sparking electrode as it spins.
Through hole drilling, on the other hand, does not require material left over by a single hole electrode to be burned away. Such material simply falls away from the workpiece. As a result, single hole electrodes are ideal for this application. Due to the smaller amount of material used in a single hole electrode and their simpler construction, they are also cheaper than multi-channel electrodes.
Brass EDM Tubes and Your Specific EDM Drilling Machine
Today’s EDM Drilling Machines are far more advanced than ever before. With the various preset power settings available, our brass EDM tubes will work effortlessly with any machine. Some EDM drilling machines prefer brass as opposed to copper. This is unique to your exact machine as there are many different EDM drill machines on the market.
Holepop Product Information
- All tubing is backed with a rock-solid 100% product guarantee.
- If you are not satisfied with our EDM consumables and EDM tubes we will either replace them or refund you the total cost.
- We offer fast, reliable, and completely customizable shipping to suit your needs.
- Holepop uses UPS, DHL, FedEx, and any other international courier to ship anywhere in the world.
- All brass and copper EDM electrodes are supplied in packs of 100 pieces.
- Place an order here or call (714) 222-9899 to speak directly to our EDM Hole drilling specialists.