Metal cutting with a hand-held saw

Metal cutting with a hand-held saw also called a hacksaw, is a method of chip cutting. The surface quality after cutting has the smoothness as well as the accuracy achieved. So cutting by a hacksaw is often used in the roughing stage of processing embryos from mechanical products in the form of bars, ingots, … for the subsequent operations. In today’s article, I will give you an overview of the hacksaw and the construction of a hacksaw things. Do not let you wait any longer, let’s find out now.

Parts of a portable saw

parts of a portable saw
parts of a portable saw

The general structure of a hacksaw includes:

  • The frame is a flat steel bar-shaped into a U-shape to hook the saw blade. There are two types of saws, fixed and adjustable. A movable example can accommodate different types of saw lengths.
  • The saw blade is mounted on the two tangent heads of the saw frame, through two sets of latches. Pink ears (nuts) are used to take apart and adjust the tension and slack of the saw blade.

Handles made of wood have a suitable shape.

Saw blades

saw blades
saw blades

Saw blades are usually made of tool steel carbon or by wind steel, tool steel alloy.

Saw blades usually have a length of 0.6 – 0.8mm, a width of 12 – 15mm, and a range of 250 – 300mm.

The two ends of the saw have two small holes (about 2.5 – 3mm) to thread the latch when hooked to the frame. Along the edge, people cut each sharp tooth called sawtooth. There are two types of saw blades: one has a row of teeth, and the other has two rows of teeth.

In terms of structure, a saw blade is a cutting tool with multiple saws; each sawing is a cutting edge.

For easy material cutting, it is necessary to open the saw circuit (to reduce friction between the saw blade and the material). There are three ways to open the saw circuit:

  • Open-loop: open alternating, one tooth tilted to the left alternating with one tooth tilted to the right. This method is rarely used, sometimes used to open the chainsaw.
  • Open medium circuit: one tooth inclined to the left, one tooth straightened, one tooth tilted to the right. This method is used a lot, but only to open the chainsaw.
  • For small saw blade to cut metal, we open the saw blade in a step shape, every few teeth are left, some teeth are right, creating a uniform wavelength.

Classification of saw blades

classification of saw blades
classification of saw blades

There are two ways of classifying saw blades:

  • Based on the sawing method to divide the hand saw blade and the machine saw blade. Hand saw edges are less than 1mm thick, and machine saws are more abundant than 1mm.
  • Based on the tooth pitch, it is divided into three categories:

Firstly, small teeth with a tone of 0.8 – 1mm, used to cut thin sheets and tubes with a thickness of less than 1mm.

Secondly, medium tooth type with 1.25mm pitch used to cut steel and cast iron.

Finally, the large tooth with 1.6mm pitch for machines of all kinds.

How to hook a saw on a frame

Loosen the nut or pink handle to allow the movable mandrel to recede. Put the two ends of the saw blade into the two grooves of the mandrel and the movable mandrel, so that the tooth angle is facing toward the movable mandrel. At the same time, adjust the hole on both ends of a saw blade to coincide with the hole on the mandrel and thread the retention latch. Turn the nut or pink handle to tension the saw blade. When stretching, the saw blade should not be too loose or too tight, as both cases easily break the saw blade. So when straining, you need to adjust the saw blade moderately. If you use your finger to flick the saw blade, it will be enough to make a sound.

(Note: clamp the saw blade so that the blade direction is in the course of the working stroke when you saw.)

In conclusion

Above, I have shown you about the hacksaw, the constructions of the hacksaw and the operations. Once you’ve got yourself the best hacksaw, it’s essential to learn the process and how to use it. I hope this article has helped you a bit.

Cool Basement Ideas For Lounging Area

Really-Cool-Basement-Ideas
Really-Cool-Basement-Ideas

There are so many cool basement ideas that one can easily implement and make their basement a better place. The basement is usually, a largely underutilized space which is used to store junk and items of the house that have sentimental value but no practical use and cannot be thrown away. But if one can bring oneself to make a careful analysis of what is in the basement and evaluate and throw away what is absolutely not required, then you can think about transforming the basement into another room for the house – which not only adds value to the home but is also a good way to utilize extra space. The best part about a basement room is that you can always make it into your own space. A basement is often used as a “man-cave” for growing boys and adult men. Which means that they take their pool tables, their bars, their dart boards and their home theaters into a space that is solely for their private enjoyment and space. Home owners can also think about making the basement into a spare bedroom, a guestroom, an extra bathroom, a family room and so on and so forth. Look up cool basement ideas for your home online and ensure that you do not overspend on the décor and repair.

Interesting and cool basement ideas

Some of the best cool basement ideas can be found online where you will easily find tons of pictures and tutorials to show you exactly how to go about it. A great way to utilize basement space is to turn your basement into a family room, and this is especially useful if you have a family that is large and there are many kids. Make the basement into a warm and appealing place which is done up with beautiful colors, warm colored rugs or mats in yellow or orange or red, the walls can also be done up in such colors and made to look warm and inviting. Have a television set placed on the wall, and have shelves around for the rest of the home theater paraphernalia – speakers etc. You can also have Styrofoam tiles installed on the walls and on the ceiling to make the room soundproof and make the acoustics in the room better. You can also build your own bar into this basement, and cover the ceiling with appropriate lighting, interesting tiles to fortify it etc. There are plenty of great ideas for basements, you only have to look.

Cool basement ideas for kids

Cool basement ideas for kids involve turning the basement into their personal paradise. If you have little girls, you can easily turn the basement into a ballet room or a room for dance practice. All you will need is to install bars to hold on to and large mirrors. You can even make the basement into a room for band practice if you have young gentlemen at home who enjoy strumming on their guitars or practicing on their drums. For this reason you might also consider acoustic or Styrofoam sound proofing tiles for the wall or the ceiling. You can also turn the basement into a private indoor swimming pool though that would be a very difficult thing if you do not have the right kind of house plan for it. And before you pick out any cool ideas for the basement you will have to see how much repair work has to be done and factor in that cost into your remodeling scheme. Check out cool basement remodels online to get a good idea of how to exactly make your basement look appealing.