Felix Ure, a product design undergraduate, had his mountain bike stolen as a boy and has now created the Hench lock – a security device that uses high-strength fibre material Kevlar. Felix, originally from Tunbridge Wells in Kent, said: “I know how it feels to have a bike stolen It’s really important that a bike lock can last long enough for a thief to be deterred. I wanted to design something which could help people avoid having to go through what I did.” A video shows the 23-year-old trying to destroy his bike lock with angle grinders, bolt cutters and more.
I’m wanting to beef up my door with a heavy duty security gate but I’ve seen how fast an angle grinder can cut through a lock. I was thinking of adding some housing on the very outside of the hasp/lock/hinges/face that I could fill with something to foul up a grinder wheel. I thought maybe putting in a bundle of 900 lb Kevlar strands that would get pulled into the wheel similar to chainsaw chaps.
A little OT but was working where cut resistant gloves were required,drilling a 1/4 inch hole had the bit slip and catch the thumb of left hand. The glove immediately turned red, drill bit was wound up tight so I dropped the battery out with one hand and began to carefully unwind the glove from the drill bit. All I found was a very small hole in the glove,but the blood soaked glove was because all that pressure had to go somewhere so it came out under the thumbnail.
The problem with most materials that can’t be cut relatively easily with an angle grinder and the proper disk/blade is that it is going to be a) very expensive, b) very brittle and hard to work with, and/or c) extremely heavy. As mentioned by James, something like a high carbon, high molybdenum steel, such as VG-1 or ATS-34, hardened to a Rockwell B-scale of >60 would be hard to cut with an angle grinder. Making a practical cable or chain that can’t be cut with a diamond wheel on an angle grinder is a tall order.
That’s what makes the marketing claim behind the pre-release Altor SAF Lock so compelling: It’s the world’s first angle grinder-proof bike lock. At 13.7 pounds, it’s twice the weight of a Kryptonite New York Fahgettaboudit Mini U-Lock and about as heavy as a 5-foot Kryptonite New York chain lock, so don’t think of the SAF Lock as a regular bike lock. Akers told Bicycling that Altor set out to make a lock that could withstand 45 minutes of angle grinder cutting, so in that regard, the SAF Lock succeeds.
04-08-2017, 01:14 PM #2. 04-08-2017, 01:15 PM #3. 04-08-2017, 02:26 PM #4. 04-08-2017, 02:29 PM #5. 04-08-2017, 03:01 PM #6. 04-08-2017, 03:38 PM #7 I never wear gloves when using a angle grinder Why should I. I have the safety hood on all the time So any gloves will only limit the feel on the switch which is more of a risk as that a disc explodes and then a part takes a 180 dgr turnover and hits my hand Gloves are a risk if used at the wrong occasions Gloves are only effective if its sharp or hot And if you dont want dirty hands of coarse. Deep like tractor rutts…. 04-08-2017, 04:31 PM #9. I never wear gloves when using a angle grinder Why should I. As I mentioned, angle grinder fragments can shred hands and go through leather gloves. 04-08-2017, 06:24 PM #12. As I mentioned, angle grinder fragments can shred hands and go through leather gloves.
In a successful attempt, engineers have manufactured a material that is now being hailed as the world’s first metal which cannot be cut. The material, named Proteus, cannot be cut using either angle grinders, drills, or high-pressure water jets. While an angle grinder or drill might cut through the outer layer of a Proteus plate, it will not be able to go through or harm the embedded ceramic spheres, which uses destructive vibrations to blunt any cutting tools.
angle grinder vs kevlar Related Question:
Is there anything an angle grinder can’t cut?
The inspiration behind this creation is the natural defense mechanisms used by shells, grapefruit skins, and fish scales that makes them resistant from the attacks of various sea creatures. The material, named Proteus, cannot be cut using either angle grinders, drills, or high-pressure water jets.
What is the most difficult material to cut?
Diamonds are largely considered to be one of the hardest, naturally occurring materials on Earth, although with the right tools, you could actually cut or fracture a diamond.
Should you wear gloves when using a angle grinder?
“Gloves should be well-fitted and provide good dexterity and the best possible protection against cut or abrasion and heat,” he said, adding that vibration resistant properties are also of benefit, specially on angle grinders that don’t have Milwaukee’s built in anti-vibration features.
How strong is an angle grinder?
Smaller angle grinders generally have maximum rotations in the 5,000- to 11,000-rpm range, and many have variable speed controls so you can tailor the speed to your needs. Larger angle grinders usually have lower maximum speeds, often in the 5,000- to 8,000-rpm range.
What material stops an angle grinder?
Instead, this Ferosafe stuff is a graphene composite material specifically designed to resist angle grinders and drills, and it’s made by a British materials manufacturer called Tenmat who have partnered up with Hiplok. Essentially this stuff disintegrates angle grinder blades!
Can an angle grinder cut hardened steel?
Hardened steel is a very useful material, but working with it is tough because it is nearly impossible to cut with simple tools. What you really need is an angle grinder, and this video will show you how to use one of the powerful power tools to cut a hardened steel ring.
Which material Cannot be cut?
Researchers claim the material, known as Proteus, cannot be cut. In fact, it’s so tough it destroys any tool that attempts to slice into it. Natural materials like diamond and sapphire are strong because of the dense lattice of atomic bonds, but they’re inflexible.
What metal Cannot be destroyed?
Examples of heavy metals include mercury (Hg), cadmium (Cd), arsenic (As), chromium (Cr), thallium (Tl), and lead (Pb). Heavy metals are natural components of the Earth’s crust. They cannot be degraded or destroyed.
What metals Cannot be cut?
Tungsten carbide rings are made of the hardest metal on earth. This is what gives it its scratch resistance, but this durability also means these rings resist cutting tools. Because these rings are so strong, many people worry about whether or not they can be cut off in case of emergencies like finger swelling.
What PPE is required when using an angle grinder?
You are wearing appropriate PPE, including safety glasses (‘medium impact’ glasses as a minimum), face shield if required, dust mask, hearing protection, gloves and an apron to protect against sparks. The power tool runs smoothly, with no vibration or wobbling. (Let it run until it reaches full operation speed).
Is angle grinder loud?
Hand-held angle grinders can produce noise levels of about 90 to 115 dB(A).
Can an angle grinder cut stone?
An angle grinder is a power tool that can be used for cutting through different types of materials, including metal and other solid materials such as bricks, aluminium, stone and concrete.
Will an angle grinder cut concrete?
Concrete cutting is a common task at the construction area, such as cutting concrete floor, concrete wall, concrete slabs and concrete pavers. Although the various concrete cutting saw is available, an angle grinder is the most convenient tool for small concrete cutting work.
Will an angle grinder cut through a padlock?
An angle grinder is a portable machine that uses a disc to cut metal and tile. Use a 60 grit disc that’s 3⁄64 inch (1.2 mm) thick for the easiest way to cut through the lock’s shackle. Angle grinders work best on padlocks or bike locks.
Can a grinder cut through a lock?
If you happen to have an angle grinder, you can easily cut through a padlock without needing a bolt cutter. You will need a metal cutoff wheel with your angle grinder as well, but these are not terribly expensive. Before you start cutting away, though, you will need to wear the proper safety gear.
