TYPES CHISEL LATHE ~ Arek Mesin

Various forms of the workpiece that we want to make on a lathe requires us to prepare the forms commonly used lathe chisel. The following figure describes the lathe chisel shape and form of workpieces produced. Part chisel chisel asterisk is right, it means doing feeds from right to left.

types of lathe chisel various forms lathe chisel
* Image from McMaster-Carr catalog

Based on the shape, lathe chisel above from left to right are:

chisel right side
chisel hip / right champer
chisel side / right surface
chisel side / surface right (larger)
screw chisel right triangle
chisel groove
chisel groove triangle (right-left)
paht screw left triangle
chisel left side
chisel left hip
chisel groove width

Based on the materials used, there are two kinds of commonly used lathe chisel, the HSS and carbide / tungsten carbide.

Sculpture High Speed Steel (HSS)

In Indonesian can be a high-speed steel. But what is the HSS that? According to Wiki,

High speed steel (HSS or HS) is a subset of tool steels, usually used in tool bits and cutting tools. It is Often used in power saw blades and drill bits. It is superior to the older high carbon steel tools used extensively through the 1940s in that it can withstand without losing its Temperatures higher temper (hardness). This property Allows HSS to cut faster than high carbon steel, hence the name of high speed steel. At room temperature, in Reviews their Generally recommended heat treatment, HSS grades Generally display high hardness (above HRC60) and a high abrasion resistance (Generally linked to the tungsten content Often used in HSS) Compared to the common carbon and tool steels.

The main use of high-speed steels continues to be in the manufacture of various cutting tools: drills, taps, milling cutters, tool bits, gear cutters, saw blades, etc., Although usage for punches and dies is increasing.

High speed steels Also found a market in fine hand tools are relatively good where Reviews their toughness at high hardness, coupled with high abrasion resistance and fine, made them suitable for low-speed applications requiring a durable keen (sharp) edge, Reviews such as files, chisels, hand plane blades, and high quality kitchen, pocket knives, and swords.

So not only used cutting HSS steel, but also wood, even good to kitchen knives.

HSS

Carbide Chisel

According to Wiki again ....

Tungsten carbide (WC) is an inorganic chemical compound containing equal parts of tungsten and carbon atoms. Colloquially, tungsten carbide is Often simply called carbide. In its most basic form, it is a fine gray powder, but it can be pressed and formed into shapes for use in industrial machinery, tools, abrasives, as well as jewelry. Tungsten carbide is approximately three times stiffer than steel, with a Young's modulus of approximately 550 GPa, and is much denser than steel or titanium. It is comparable with corundum (α-Al2O3) or sapphire in hardness and can only be polished and finished with abrasives of superior hardness Reviews such as silicon carbide, cubic boron nitride and diamond amongst others, in the form of powder, wheels, and compounds.

So chisel type is made with a mixture of chemicals, among others, tungsten and carbon, depending on the desired material properties. Sometimes also use methanol, hydrofluoric acid / nitric acid (HF / HNO3), etc. Very complicated .......: D

Can also see how to make it.

Tungsten carbide bits are then printed in a variety of shapes lathe chisel. It's made with a hole in the middle for the locking bolt to the holder / handle, like-the image below.

carbide chisel and holdernya