Search:

I've got HAAS DT1 and I've the first problem. When I reset the programm, it losts G53 origin (moving Z0 of machine). In order to launch again my programm, I need to switch off the maching, and after...

First very important question: Which lubricant do you have ??

If you have cutting oil (the best for stainless steel)
Use.Vc = 50m/min , Vf = 180mm/min depth (ap )= 0.5mm

If you have water...

Mmhhh it's not good idea to use PCB drill. The carbide of PCB drill is designed for abrasive plastics and not for steel. It's too brittle for steel.

Your die, is it already hardened or annhealed...

It's not tapping. It's whirling tool. Quarzt is very brittle. With tapping, you break the parts

Strange... Personnaly, I've a 25Watt air spindle. If the cutting power is lower than 25Watts, it works, else the spindle stops

http://www.mitsubishicarbide.net/mmc/en/product/technical_information/information/formula4.html

Here is a link how to compute cutting power

It 'll work, it depend of your material. First, ask the power of your spindle. Generally, the power of air spindle is very low (25-100W). If the cutting power is bigger than the spindle power, the...

THe part isn't nice, but the material is very nice... :)
7 threads per pieces... M3.

http://img378.imageshack.us/img378/236/cestquoiqc4.jpg

It's quartz... Hardness of 1000 HV30

UNfortunately, there is no rules for pecking cycle. It depends of diameter, kind of chip (short, long), lubricant, machinability of material

If you have favourable conditions:

- Material, which...

Do you do center hole before drilling ?? If not, your drill MUST have a web thin if you don't want to have a hole diameter to large at the top.

It's normal. Stellite is one of the most difficult to cut material. Cutting tool don't like cobalt alloy.
Use very low speed (25m/min), low feedrate (feed per tooth) 0.005xD, low cutting depth...

Hi, Nachi has very good endmill with center cutting.

http://www.nachi-fujikoshi.co.jp/eng/tool/endmil/index.html

An endmill with center cutting should have this geometry
...

Be careful concerning the torque !!! I've already "blocked" a 19Nm spindle with tapping. I don't know if your spindle has enough torque for M8. The cutting force in aluminium are 7xtimes lower than...

http://www.nachi-fujikoshi.co.jp/eng/tool/endmil/index.html

Nachi produce end mill wich can easily drill and slot. It works perfectly in steel.
The feed is 4 times lower than a drill.

Warning,...

Is it possible to have the grade of your tool steel ??
It's like carbide: There is several grade for HSS: If it's harder, it's more brittle. If it's tougher, you loose hardness. If you ask your HSS...

OK. IN my experience, it's not good to turn at the maximum of spindle.
With 6000RPM, it doesn't work harden. Austenitic stainless steel work harden whatever the speed. Of course it's very local.
...

I drill SS316 every week. It's more difficult to drill than 304.

First question:

What kind of lubricant do you use: The cutting parameters are so different if it's cutting oil or water soluble...

It's hard to give a hardness of HSS... maybe 70HRC.

A better value is the hardness in HV30.

HSS is 800 to 1000 HV30 and carbide (for cutting tool) is 1600 to 1900 HV30

Do you know ??
Have you ever used this kind of mill ??
Do you feel a real difference compared to the common roughing end mill ??

THank you for the answer

I think that the Schunk Tribos tool holding system is the best for microtool
...

For the threading of titanium with its kind of diameter (diam 0.6 to 2mm), the whirling tool are the more efficient. It's like thread mill, but it works in every material from 0.6mm. Instead of one...

I've a laser control blum, but it not the same fashion as you.

What do you want to check ? Boring bar diameter, boring bar length ? The problem of Laser control blum is the micro tool with a peek...

You'll find all information here
http://www.hoffmann-group.com/download/en/zerspanungshandbuch/en-zerspanungshandbuch.pdf

p112 - p160

If you want, I've an excel file where you can compute the...

TiB2 coating improve the tool life in aluminium and titanium (only in finishing).
Ask CEMECON USA for further information.

Meidell sell cutting tool of my company (DIXI) in Norway.

http://www.meidell.no/

:D

http://www.nachi-fujikoshi.co.jp/eng/new/pre/020422.htm

Here is the link.

I've tried in 316 and 904-l stainless steel. Great performance.

Your material isn't easy to cut (25%Cr, 19% Ni): GOOD LUCK.

Use SUS drill (in HSS) from Nachi-fujikoshi. It produces only short chip in austenitic stainless steel !!!
FOr this reason, pecking...

Now the problem is resolved. I've changed the coating. The coating should be the smoother as possible. Now It works perfectly with 0.15m (0.006") or more. Of course the tool life duration isn't a...

The chips are very small in this material. It's not the case with a lot of drill. I don't think that the chip form are the problem.

Thank you for the answer.

There is still a data in my problem. The pressure of my internal coolant pump is 60bars.

I'm not sure that I've have the good lubrication. In 3-4 month the lubrication...