How to increase tool life

What tools?

To increase tool life use the right tools to begin with. Carbide will last longer then HSS, cutting conditions make a big difference as well, light easy cuts are hard on tools, they rub more then cut and won't last as long.

Hope that helps

One of the most important things you can do to extend tool life is to keep them properly lubricated while in use, and just as importantly, while they are stored.

John

I think the speed of dark is the same as the speed of light, only in the opposite direction

I Dunno. I always thought that darkness was the absence of light so it's speed would be zero. Or to put in mathematical terms E =√(m/D). E = Energy m=mass, D = universal negetive constant for the speed of light. Take that Einstein

I'm sure you're right. But my answer is still funnier.

_________________________

"I'm many things, Einstein I'm not." - Munky

Maintaining positive feedrate at all times also reduces rubbing and will greatly extend tool life.

Dear Sir, please accept the idea that we cannot read minds.

Tool is a generic word covering all what can help a human being to do better his job. It can be a pencil, a gun or a boat. It could be better to specufy the kind of tool you think of.

Abd then you can expect from the big number of experts participating at this site to get the very BEST answer.

TIT FOR TAT:

Running it Gentle,Cool,clean often--treat it like a tool! Will then behave like a reliable tool!

Carpenters have the biggest tools.

The ladies always love a shave and a wax!

Are you talking about cutting tools for machining? If so, you must provide more specifics. The suggestions that have been made are all good general rules but do not always apply. Cutting tool engineering, and high speed machining have changed the rules considerably over the last few years. For example not all tools work best with coolant especially when cutting steel. New tecniques for high speed machining encorporate high spindle speeds, high feedrates, light cuts, and specially programmed toolpaths such as trochoidal and nurbs surface toolpaths. There are a huge array of cutter materials, cutter geometry, and coatings with applications for every type of material you can think of.

So, just what are you trying to do and to what material. What are your current conditions? Ie: machine, cutter, material, rpm, ipm, coolant, depth of cut, width of cut. What do the chips look like?

As far as cutter condition, get at least a 10 power loupe or even better a microscope to look at the cutting tips and edges of the cutter. Compare your used cutter to a new one. This sounds basic and it is, but it will teach you a great deal about machining. Whenever I see someone test the edge of a pricision cutting tool with their finger I know that they don't know what they are doing. If your cutter is chipping it is likely that your rpms are too low, if burned, too high. If the cutting edge is worn (shiny edge ) you may need to go to a better quality cutter or a coating. Again the recomendations will vary depending on the conditions.

Your question is insufficient to provide you with the answer that you need.

As a result other s have made suggestions that in some cases might be right, but in others might be wrong. Carbide is not the perfect tool material if you cannot get sufficent surface feet per minute, and can also be problematic in situations with interupted cuts.

Positive rake is a great idea for steel, but there are many other materials where zero or negative rake is optimum for surface finish and tool life.

PRoper grinds, getting workpiece in optimum condition microstructure, tool coatings, are just a few other areas to be considered.

All this presumes a robust and well maintained machine tool. And proper lubricant/coolant.

Proper edge prep such as proved by companies like conicity provides yet another opportunity to improve the process. http://www.conicity.com/

With a better worded question, you can get useful answers. as it is right now, you have managed to collect a whole bunch of cutting "lore" that is half truth at best depending upon the actual circumstances.

5W-2H Will let our experts give precise and expert answers :

WHo WHat WHen WHere WHy HOw HOw MAny? YOu can leave out the "Who , but the what, where how, how many are essential descriptors of your process.

ASk Better questions.

milo" description of tool failure modes and or chip morphology and resulting workpiece conditions are also important clues."

you didnt posted full details of what kind of machining you are doing is it any kind of automatic metal machining or any speacial purpose machine tooling

tools cut from sharp edges once it get blunt ,debure, it doesnt cut material .....different operations need different type of shape grinding please mail me back with attachement of picture i l suggest u the best tolling and grinding method