Milling Machine

Just like lathe machine, a milling machine is also used to cut and shape solid materials like metal, wood and plastics. But, a milling machine is different than a lathe machine because in lathe machine the material moves in order to give a specific shape whereas, in milling machine the cutting tool moves at a high speed. Basically, there are two types of milling machines manually operated milling machines and computer operated milling machine which gives ultimately accurate results. The milling machine you need to choose depends on the process your workshop requires to accomplish.

HELPFUL TIPS FOR MILLING

• This is a small, light duty mill and should not be used to remove large amounts of stock that could be easily removed with a hacksaw. For efficiency, select a piece of stock as close to finished size as possible.
• Stresses on a mill are quite high when cutting most materials; therefore, gib and backlash adjustments must be properly maintained. (See "Adjustments" section beginning on page 6.)
• End mills must run true and be sharp. Holding end mills in a drill chuck is a poor practice. Use collets or an end mill holder instead. The 3/8" end mill holder (P/N 3079) allows you to use a large range of readily available 3/8" end mills with your machine. (1/4" and 3/16" end mill holders are also available.)
• Flycutting is an excellent way of removing stock from flat surfaces and leaves a good finish.
• Normal machine alignment is adequate for most work, but if the work is exceptionally large or requires extreme accuracy, shims may be employed to improve machine alignment.
• For accurate setups you should have and know how to use a dial indicator.
• Often, more time will be spent making fixtures to hold work than doing the actual machining.
• To help save time on many simple setups a good mill vise is a must.
• Always try to have one point from which to measure. Do not machine this point off part way through the job. This would leave you with no way of measuring the next operation. Plan ahead.
• Remember the basic machining rule that says: "If the tool chatters, reduce speed and increase feed."
• It takes a long time to accumulate the knowledge, tools and fixtures required for many different types of milling operations. Do not become discouraged by starting with a job that is too complex or by using materials that are extremely difficult to machine.