Machinist – Module 4

Description

A bandsaw (also written band saw) is a power saw with a long, sharp blade consisting of a continuous band of toothed metal stretched between two or more wheels to cut material. They are used principally in woodworking, metalworking, and lumbering, but may cut a variety of materials. Advantages include uniform cutting action as a result of an evenly distributed tooth load, and the ability to cut irregular or curved shapes like a jigsaw. The minimum radius of a curve is determined by the width of the band and its kerf. Most bandsaws have two wheels rotating in the same plane, one of which is powered, although some may have three or four to distribute the load. The blade itself can come in a variety of sizes and tooth pitches (teeth per inch, or TPI), which enables the machine to be highly versatile and able to cut a wide variety of materials including wood, metal and plastic.

Almost all bandsaws today are powered by an electric motor. Line shaft versions were once common but are now antiques.


What Will I Learn?

  • Select a schematic among other kinds of technical drawings and diagrams.
  • Describe how flow is indicated on a schematic.
  • Describe the definition of a schematic.
  • Identify characteristics of schematics.
  • Give the purpose of legends and other tables of symbols.
  • Explain a set-by-step approach to troubleshooting when using a schematic.
  • Name various types of lines on schematics.
  • Name the following schematics by their symbols: electrical, fluid-power, piping
  • Explain the meaning of symbols and lines on an electrical schematic.
  • State the difference between a fuse and a circuit breaker.
  • Describe how to trace an electrical circuit.
  • Describe the difference in current flow between a series circuit and a parallel circuit.
  • Describe the purpose of a wiring diagram.
  • Show how to read an electrical schematic.
  • Recognise the objects represented by the symbols on an industrial schematic.
  • Describe the function of a valve in a piping system.
  • Describe ways of joining pipe.
  • Define the symbols for various kinds of fittings and describe the function of each
  • fitting.
  • Describe the function of a valve in a piping system.
  • Describe the difference between a check valve and a cock valve.
  • Recognise the symbols for various types of valves.
  • Determine pipe size using a diagram.
  • Define the components of a fluid-power system.
  • Define the purpose of the main parts of a hydraulic system.
  • Describe the purpose of the main parts of a pneumatic system.
  • Define the purpose of local areas on a hydraulic or pneumatic diagram.
  • Define the actuator in a hydraulic diagram.
  • Describe the purpose of local areas on a hydraulic or pneumatic diagram.
  • Explain a composite symbol.
  • Describe the difference between a closed and an open hydraulic or pneumatic
  • system.
  • Explain the subsystems of an air conditioning system.
  • Recognise the symbols for air conditioning and refrigeration components.
  • Describe the operation of an air conditioning and refrigeration control system.
  • Describe fusion welding.
  • Define the main methods of fusion welding.
  • Define the five types of joints and three ways of welding each joint.
  • Illustrate how to read and interpret a complete welding symbol.

Topics for this course

8 Lessons10h

Saw and Sawing Machines: Lecture

Lecture 01:04:42

Vertical Bandsaw

Bandsaw Blades

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Course Details

  • Categories: Machinist
  • Total Hour: 10h
  • Total Lessons: 8
  • Last Update: July 8, 2021

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