What is file and folder in computer?
A file is the common storage unit in a computer, and all programs and data are “written” into a file and “read” from a file. A folder holds one or more files, and a folder can be empty until it is filled. Files are always stored in folders.
What is a file extension example?
A file extension (or simply “extension”) is the suffix at the end of a filename that indicates what type of file it is. For example, in the filename “myreport. txt,” the . TXT is the file extension. Sometimes long file extensions are used to more clearly identify the file type.
What are the different types of files in workshop?
Types of File Tools
- Flat file.
- Round file.
- Half-round file.
- Triangular file.
- Square file.
- Hand file.
- Knife file.
What is a file in workshop?
A file is a tool used to remove fine amounts of material from a workpiece. Most are hand tools, made of a case hardened steel bar of rectangular, square, triangular, or round cross-section, with one or more surfaces cut with sharp, generally parallel teeth.
How are files classified?
Files are classified according to their cross-sectional shapes, the form of the cutting edges, and the coarseness of the cut (i.e., the number of teeth per inch or centimetre). Rasp files, or rasps, are usually very coarse and are used primarily on wood and soft materials.
What are the two most common filing techniques?
You have two basic methods: straight filing and draw filing.
Does a file cut both ways?
First, a file is like a saw blade and only cuts in one direction. Both file and saw teeth have an angle relative to the work surface known as a rake. In one direction the angle is sharp enough to dig into softer material in order to remove it.
How do you properly use a file?
A file should not be used in a “sawing” motion (pressed back-and-forth), but rather pushed forward then lifted off the work piece each time. The cutting teeth on a file are forward-facing, which means they work only when the file is moved in that direction.
Which file is used for filing wood and leather?
Four-In-Hand Rasps are designed for filing both flat and curved surfaces in soft metals, wood, plastics, and leather. They are used primarily by woodworkers, shoe repairmen, and leather craftsman.
What is convexity of file?
The convexity of a file restricts the number of teeth which contact the work surface and thus reduces the load required to make the teeth penetrate the surface of the work.
How do you file a curved surface?
Creating a curved surface
- Step 1 – Prepare workpiece. Clamp the object you are going to be filing into a vice so that it is secure and doesn’t wobble around.
- Step 2 – Grip file securely at both ends.
- Step 3 – Tilt point upwards.
- Step 4 – Push stroke.
- Step 5 – Draw stroke.
- Step 6 – Repeat.
What is a draw file?
Draw filing is a technique used for producing smooth, square edges, particularly on pieces of metal. The process works by moving any type of single-cut file forwards and backwards along the length of the material’s edge.
What is a machinist file?
Machinist’s files (also known as engineer’s files) are designed for shaping and finishing material. Coarse machinist’s files are used for the rapid removal of material and are usually double cut to increase speed. Finishing is done by smoother files that are single cut.
What is the tool used for smoothing curved surfaces?