Jan 2020
A Beginners guide to Micro Drilling and its Process

Micro drilling is a drilling process used by most industries. However, the construction industry is a pioneer when it comes to micro-drilling. Micro drilling is just a subset of the drilling process. It opts for many components and principles which are similar to standard-sized drilling operations, but the outcomes are totally different. It can fabricate holes with diameters measured in millimeters and micrometers. It contains smaller drill bits with specific head and flute designs so that it performs the work with accuracy.

Micro drilling proves to be very popular equipment in the machining world. You need to examine everything from the length of your flute to the head tip of the drill. To ensure that there is no room for error in micro-drilling, you need to be specific. You need to know the components and an array of details to successfully drill a small hole. It requires an expert approach to use a micro-drilling machine.

Generally, these TWO types of drills are mostly utilized by engineers in a micro-drilling process: gun drills and helical twist drills.

  • Gun drills are applied for the machining of camshafts, driveshafts, injectors, crankshafts, drill pipes for oil production, in the medical and the food industry.
  • Twist drills can cut anything from wood and plastic to steel and concrete.

Understand Micro Drilling process

The process of micro-drilling comprise of some specific steps, they are furnished beneath:

Research the Material

First of all, you need to know your equipment very well and possess a basic knowledge of it. Here, in this case, you need to research a lot and become an expert on how to use this drilling machine or cutting metal. From how to hold the micro tool, the depth of hole you need to what is the drills entry point, there is a lot of confusion out there when dealing with micro drilling in general and you need to arm yourself with in-depth research to get the best outcomes.

One of the best ways to get enough and effective information is to research different coolants and different drillers. Make sure the driller sand coolants that you approach should have a phone number so that you get reliable information from them.

For example, if you need to drill a 008” hole into 15.5 PH stainless the first thing you need to do here is to learn in-depth about 15.5 PH stainless steel to get the best outcomes.

Understand the Coolant

After doing proper in-depth research about the material and understanding its specifications, the next step is to use the coolant. The most important step when you are planning a micro-drilling is the drill cycle. You can apply several strategies from varied information available to get the best drilling outcome, but the one thing that you should need is a striking cycle. You can’t use a chip break cycle because it leaves chips in the hole and that can create big problems. While on the standard drill, the flute is responsible for carrying out the hole. You need to retract on every peck and this will give you perfect results though causing more time but ensures you a longer life of your drill.

So, planning a strategy with proper research is very important in making the perfect micro drill. Make sure the equipment clears the hole with proper distance and time to receive some coolant and clear the chip.

Optimal Coolant for Micro Drilling

Coolant works as a vehicle for heat transfer in the micro-drilling process, while the most important factor in the process is lubrication. Under normal conditions, coolants do their job perfectly, but micro-drilling is easily smashable. Water-soluble performs a very funny thing that we don’t notice. When the bottom of your hole fills with coolant and the tool enters the hole, it actually becomes pressurized. And ultimately it overpowers the tool. In such circumstances, you can use a misting system for your operation along with a thin oil that flows perfectly.

After doing this, if the drill passes through the coolant and lubrication, it will not overpower your tool. The only problem that this system has is chips. Break a few drills and plan to try different things, never plan to drill a hundred holes in ten minutes. You need to give proper care and precision to this equipment, this is not high-speed machining, it takes time.

Wrapping Up

We hope that after reading the whole article, you got all your answers on how to use a micro-drilling machine. Do your in-depth research and calculate the number and do the needful to get the best outcomes this is what the first step is all about. In the second step, you need to understand the coolant and how it will help you to get the perfect hole through drilling. The results will be outstanding just believe in the research and number you found.

And one final thing, this is not a high-speed machine, it’s an equipment that requires your research, strategy, and care to get the things done. So, make sure you use it in that way. If you want more holes in less time then this is not the equipment you require.

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