Core Drills vs. Conventional Twist Drill

What drill fits your work process the most? Today, we’re going to compare two drills to know which one is more efficient and saves you a lot of time.

Conventional Drills

·         It only has one cutting edge or point.

·         Since it is solid, it has only cutting point and has to be cut or remove the complete material of the hole to be made.

·         Takes more time drilling a hole

·         requires pre-drilling or step-drilling

·         Can be messy when drilling

Core Drills

·         Have multiple cutting edges that can help in drilling with less horsepower and efforts.

·         Since it has multiple edges, hollow cuts only on the periphery of the hole can be made.

·         Cut less materials and the time it requires is less

·         Considered to be 3-4 times faster

·         Single core drills can make 5 – 10 times more holes

·         Can be re-grounded to make another 1500 holes meaning it saves you a lot of tool costs

·         Even on larger diameters, it does not require any pre-drilling or step-drilling

·         It provides better accuracy

·         Burr-free holes and smooth holes created

The advantages of the core drill are listed here but there are also disadvantages like, it cannot drill on blind holes. The reason behind this is that with the hollow geometry, it can only make holes through. Another disadvantage of the drill is in drilling piles of plates. However, there are certain kinds or brands that are able to cut through drilling piles, but it doesn’t guarantee 100% success rate. When it comes to the price, it can be more expensive than conventional drill but more efficient.

For drill repair and maintenance, we also offer our services at The Machinery Doctors. We also offer our services for different kinds of machinery. Visit our website now or contact us today!

The Common Problems in Punch and Dies

Numerous factors contribute to the problems encountered when it comes to Punch and Dies. If you’re having problems with chipping, breaking or cracking punches, we’ll give you some tips or solutions that may apply to your problems. Also, you can contact our experts and we’d be happy to help.

Here are some factors that contribute to the least performance of your punch and die. To achieve the maximum performance of your punch and die, you should be able to recognize these problems.

1.       Misalignment

If the punch is not aligned to hole in the die, it will result into a non-uniformed clearance from the die, thus damaging both ends of the equipment. The solution would be, check the punch and die if they are aligned properly.

2.       Loose Coupling Nut

During the process of punching, loose coupling nut may allow the shift of the machine that leads into chipping or cracking of the punch and die.

3.       Stripping failure

Stripping failure happens when the stripper has too much clearance and will cause the material to be punched to move. This can cause angular fracture to the punch. Solution is to adjust the stripper closer to the material to avoid unnecessary material movement.

4.       Chipping and Galling

Face chipping and heavy galling on one area are problems we encounter when it comes to Punch and Dies. Poor alignment between the punch and die is causing the punch to drag. Possible solution is to adjusting the alignment between the punch and die; equal clearance all around.

5.       Comprehensive failure

      The punch and die also exceeds its capability to punch through materials and eventually shatters and get destroyed. The cause of this problem is the punch attempts to punch extremely hard materials and really thick materials. Also, misalignment also a factors when it comes to comprehensive failure. Solution is to find quality punch and die.