PADLOCK

• PADLOCK PROCESS:

  Start with the body made of heavy-duty steel bars. They are cut into lengths by a powerful blade, and then holes are drilled for the locking mechanism to be inserted.
• PADLOCK PROCESS:

  To make the padlock arms, steel bars are bent into shape using a powerful press, and then drilled to have notches or grooves.
• PADLOCK PROCESS:

  To strengthen the padlock, it is heated until it's red-hot, then rapidly cooled, making the metal more flexible and less likely to shatter.
• PADLOCK PROCESS:

  After washing, the padlock is submerged in nickel dust with a positive polarity, and then set with a negative polarity to attract the nickel dust, creating a coating that prevents rust when exposed to rain.
• PADLOCK PROCESS:

  After this, it is washed again and proceeds to galvanize the steel, making it waterproof.
• PADLOCK PROCESS:

  The next process involves the locking mechanism with a unique code. Once completed, the lock is sealed, placing the arm and outer covering. They tested it in lower temperatures like -40°C.
• PADLOCK STRUCTURE 

  The first part of the padlock is the notches.
• PADLOCK STRUCTURE:

  Inside the padlock, we have what we call the plug. This is where we insert the key.
• PADLOCK STRUCTURE:

  Inside the plug, we have what we call the pin holes, wherein each pin hole has key pins that are at different heights, serving as the profile or code of the key.
• PADLOCK STRUCTURE:

  Next are the chambers and the housing of the padlock. In the chambers, there is a spring and a driver pin. The spring pushes the driver pin until it touches the key pin. The intersection between the plug and the lock housing is what we call the shear line.
• PADLOCK STRUCTURE:

  • This shows that without the key, the driver pin will prevent the plug from turning, thus not opening the padlock. For example, if we try the wrong key, we can see that the driver pins and key pins do not align, thus not allowing us to turn the plug. The sixth pin in the lock is what holds the plug from being pulled out.
• PADLOCK STRUCTURE:

  Let's now proceed with the other structure, which is the cam. Between the cam, we have two latches. They are angled to fit the notches of the shackle. A spring is then placed, which pushes the latch so the latch and notch are interlocked, thus preventing them from being pulled out. The latch also has a small arm, one on top and one on the bottom. So when the cam rotates, it causes the latch arms to pull inwards, detaching from the notches. A spring will then push the shackle out.
• PADLOCK STRUCTURE (STEEL)

  CRYSTALLINE MATERIAL —> CRYSTAL LATTICE
• PADLOCK STRUCTURE (STEEL)

  FACE CENTERED CUBIC: ONE ADDITIONAL IRON ATOM AT THE CENTER OF EACH OF THE SIX FACES OF THE UNIT CUBE
• PADLOCK STRUCTURE (STEEL)

  BODY CENTERED CUBIC: ADDITIONAL IRON ATOM IN THE CENTRE OF EACH CUBE
• PADLOCK STRUCTURE (STEEL)

  MAJOR COMPONENT IS IRON COMBINED WITH SMALL AMOUNTS OF CARBON
• PADLOCK STRUCTURE (STEEL)

  ALLOY IS COMBINING TWO OR MORE METALLIC ELEMENTS
• PADLOCK STRUCTURE (STEEL)

  • INTERSTITIAL ALLOY: BECAUSE THE ATOMIC RADIUS OF CARBON IS MUCH SMALLER THAN IRON
• PADLOCK PROPERTY

  Mechanical properties are the characteristics a material shows when forces are applied to it.
• PADLOCK PROPERTY

  • DUCTILITY - ALLOWS ITS SHAPE TO BE CHANGED WITHOUT BREAKING.
  • HARDNESS - ALLOWS IT TO RESIST DEFORMATION 
  • TOUGHNESS - TO ABSORB SUDDEN SHOCK AND IMPACT
  • HIGH MELTING OR BOILING POINT
  • CORROSION RESISTANCE - ALLOYED WITH OTHER ELEMENTS
• PADLOCK PERFORMANCE

  • Security: The primary function of a padlock is to provide security.
  • Durability: It is durable enough to withstand conditions, such as exposure to rain, humidity, and extreme temperatures.
  • Portability: Padlocks are available in different sizes, from small travel locks to large industrial-grade locks.
  • User-Friendly: Padlocks should be user-friendly and easy to operate, allowing for quick locking and unlocking.