Harder than work piece
High thermal conductivity
High heat transfer coefficient
steel
== == Carbide generally describes a group of materials characterized by high hardness and metallic properties. Carbide cutting tool can cut a material which is having 60 HRC steel. Find the below link to know more about carbide cutting tools. www.ceratizit.com Rasheed.
The life of tool is affected by many factors such as: cutting speed, depth of cut, chip thickness, tool geometry, material or the cutting fluid and rigidity of machine. Physical and chemical properties of work material influence tool life by affecting form stability and rate of wear of tools. The nose radius tends to affect tool life.1. Cutting speed: Cutting speed has the greatest influence on tool life. As the cutting speed increases the temperature also rises. The heat is more concentrated on the tool than on the work and the hardness of the tool metrix changes so the relative increase in the hardness of the work accelerates the abrasive action. The criterion of the wear is dependent on the cutting speed because the predominant wear may be wear for flank or crater if cutting speed is increased.2. Feed and depth of cut: The tool life is influenced by the feed rate also. With a fine feed the area of chip passing over the tool face is greater than that of coarse feed for a given volume of swarf removal, but to offset this chip will be greater hence the resultant pressure will nullify the advantage.3. Tool Geometry: The tool life is also affected by tool geometry. A tool with large rake angle becomes weak as a large rake reduces the tool cross-section and the amount of metal to absorb the heat.4. Tool material: Physical and chemical properties of work material influence tool life by affecting form stability and rate of wear of tool.5. Cutting fluid: It reduces the coefficient of friction at the chip tool interface and increases tool life.
1. cutting tool should be more harder than the material to be cut otherwise it can break during the process. 2.cutting tool should be tough.well,there is much difference between the word hard and tough. hardness implies resistance to scratch whereas toughness measure ability to withstand shock. 3.The tool should be able to withstand the heat generated in the metal cutting process. Also, the tool must have a specific geometry, designed so that the cutting edge can contact the workpiece without the rest of the tool dragging on the surface of the piece part surface. The angle of the cutting face is also importantol must be able to withstand the heat generated in the metal cutting process. The angle of the cutting face is also important as is the flute width, tool margin and tool material. SUGGESTIONS ARE WELCOME
1) use it on the material it was designed for - Check for hidden nails 2) use them for the task they were designed for - Don't use a chisel to pull staples or to pry with. 3) Don't let cutting edge make contact with other tools - The bottom of the tool box is not the place for a edged tools and drill bits For lathe and milling machine cutting tools: * use at the correct speed for the tool and material * use coolant/lubricant to minimise heat where appropriate for the material
1.you have to know the workpiece material 2.tool material 3.type of machining process 4.sinle point or multi point tool 5.roughing or finishing cut 6.stresses that applied on the tool 7.dry or wet machining 8.cutting conditions,speed,feed and depth of cut 9.productivity and tool life 10.surface finish required
== == Carbide generally describes a group of materials characterized by high hardness and metallic properties. Carbide cutting tool can cut a material which is having 60 HRC steel. Find the below link to know more about carbide cutting tools. www.ceratizit.com Rasheed.
there are two different cutting tool , one is high speed steel (HSS) and carbide steel
The life of tool is affected by many factors such as: cutting speed, depth of cut, chip thickness, tool geometry, material or the cutting fluid and rigidity of machine. Physical and chemical properties of work material influence tool life by affecting form stability and rate of wear of tools. The nose radius tends to affect tool life.1. Cutting speed: Cutting speed has the greatest influence on tool life. As the cutting speed increases the temperature also rises. The heat is more concentrated on the tool than on the work and the hardness of the tool metrix changes so the relative increase in the hardness of the work accelerates the abrasive action. The criterion of the wear is dependent on the cutting speed because the predominant wear may be wear for flank or crater if cutting speed is increased.2. Feed and depth of cut: The tool life is influenced by the feed rate also. With a fine feed the area of chip passing over the tool face is greater than that of coarse feed for a given volume of swarf removal, but to offset this chip will be greater hence the resultant pressure will nullify the advantage.3. Tool Geometry: The tool life is also affected by tool geometry. A tool with large rake angle becomes weak as a large rake reduces the tool cross-section and the amount of metal to absorb the heat.4. Tool material: Physical and chemical properties of work material influence tool life by affecting form stability and rate of wear of tool.5. Cutting fluid: It reduces the coefficient of friction at the chip tool interface and increases tool life.
Boringly, a device for cutting paper or other sheet material.
1. cutting tool should be more harder than the material to be cut otherwise it can break during the process. 2.cutting tool should be tough.well,there is much difference between the word hard and tough. hardness implies resistance to scratch whereas toughness measure ability to withstand shock. 3.The tool should be able to withstand the heat generated in the metal cutting process. Also, the tool must have a specific geometry, designed so that the cutting edge can contact the workpiece without the rest of the tool dragging on the surface of the piece part surface. The angle of the cutting face is also importantol must be able to withstand the heat generated in the metal cutting process. The angle of the cutting face is also important as is the flute width, tool margin and tool material. SUGGESTIONS ARE WELCOME
Cut out pieces of a material from a sheet of that material. The pieces can be any shape because the die doing the cutting was custom machined to the required shape by a Tool and Die Maker.
it loses hardness at high temperatures.
An ax is a cutting tool.
You should know the angle of the cutting tool. You can use emery sharp cutting tool.
The size of the teeth on the blades and the material the blade is made of. In order for any cutting tool to be effective, the hardness of the tool must be greater than that of the material being worked.
1) use it on the material it was designed for - Check for hidden nails 2) use them for the task they were designed for - Don't use a chisel to pull staples or to pry with. 3) Don't let cutting edge make contact with other tools - The bottom of the tool box is not the place for a edged tools and drill bits For lathe and milling machine cutting tools: * use at the correct speed for the tool and material * use coolant/lubricant to minimise heat where appropriate for the material
A coarse cutting tool Is a Nipsaw a coarse cutting tool?