Planer Tools

Planer Tools

Planer Tools - Planers are expensive machine tools. In most cases, they represent high overhead rates and, accordingly, must be operated at the highest possible efficiency and over as continuous a time period as possible. A fundamental requirement for economical planer operation is that all cuts should be as heavy as possible. Planer tools are though similar to shaper tools, but they are much larger and heavier.

Planer cutting tools may be of the following types:

(i) Forged solid type

(ii) Tool bits held in holders.

Tool bit is preferred by some because it is more economical than a set of solid tools and often is more convenient.

Straight Round Nose Planer Tools	Left &Right - Hand Round Nose Planer Tools
Left and Right Hand Knife Planer Tools	Facing and Cornering
Side Recessing and Underwritting	Broad Nose Finishing
Side Finishing	Diamond Point Planer Tools
Slotting Planer Tools	Radiusing

The straight round nose tool is intended mainly for taking roughing cuts on castings. The broad nose tool is used for taking finishing cuts on cast iron. The round nose left and right hand fools are used for planning vertical surfaces on cast iron or steel workpieces.

For smaller angles, such as often occur in planning work, the facing and cornering tool is used. This tool will allow machining in sharp corners. Knife tools are found useful on some classes of work where sharp comers are required.

Diamond point tool is largely used for horizontal planning on the surface of steel and cast iron for either roughing or finishing cuts. The slotting tool is used for forming grooves and cutting pieces of work into parts. Side recessing and under cutting tool is used for cutting grooves or slots in vertical or angular surfaces. The radius tool is used for finishing radii.

A tool holder of cranked form and cutters of any convenient shape can be held quite firmly in it.

Planer Tool Holder

When using tool bits, the common practice is to use a heavy tool shank of plain carbon steel or of high strength treated alloy steel with High speed steel.

Cast alloy or Carbide tip clamped or brazed to the shank.

High speed steel or cast alloy tools are used for heavy roughing cuts. Carbide tools are used for finishing cuts. Caution must be exercised in using carbide tools on machines not equipped with an automatic lifting device for the tool on the return stroke. If the tool is permitted to rub the work, the cutting edge is likely to be chipped.

Cutting tool shapes for common planer operations. The tools are usually tipped with high speed steel, cast alloy or carbide inserts.

Tipped Corners Cutting Planer Tools	Tipped Roughing Flat Surfaces Cutting Tools
Tipped Finishing Cutting Tools	Tipped Side Cutting Tools