#FASTCUT TOOL FEEDS AND SPEEDS PLUS#

For end-knurling from the turret, increase the axial feed rate. IMPORTANT: If you are having problems with double or mis-tracking, it usually can be solved by increasing the infeed on bump or cut knurling. Please click below for recommended speeds and feeds.

Normally the dies are fed off the work about twice as fast.Д¬UT TYPE KNURLING is done at similar speeds and feeds as pressure knurling, but the method of initial contact is critical if clean knurling is to be produced. 005/.030'/rev (.1-.7 mm/rev), using the slower range for coarser Knurling on high-alloy steels, faster for finer pitches and on brass, aluminum or mild alloy steels. When using Convex axial feed wheels, even faster feeds may be used.Д®ND KNURLING from the turret (axial feeding only) is usually done at. The slower feed for stainless steels and tough or semi-hardened steels and faster for mild steels, brass or aluminum. The normal axial feed rates would be from about.

If the knurling doesn't go up close to a shoulder, the use of our Convex axial feed wheels is strongly recommended to further reduce the knurling forces, extend tool life and improve the cosmetic appearance of the workpiece. If you will also be axial feeding to produce a knurling pattern that is wider than the knurling wheels, chamfers should be on the edges of the wheels. The two knurls should then be over and under the centerline of the workpiece. Remove the plate and advance the holder the thickness of the plate + 50% of the diameter of the knurl wheels + 50% of the diameter of the workpiece. To initially find the centerline using a two die straddle holder, you may use this method:Д«ring the preset holder and knurls towards the workpiece up to just touch a flat plate of any thickness inserted between the knurls and workpiece. Then to knurl, move the holder so that the two wheels are as close to the centerline as possible to minimize the knurling pressure on work spindle and cross slide. Before knurling, the holder should be set so that the distance between the two wheels is smaller than the workpiece diameter by approximately the depth of the knurl tooth. If you are using a two die Straddle Holder, the infeed rate should be 5 or 10 times faster because the wheels are coming in tangentially instead of head on. You may have to travel more than this amount to allow for the flexing of the part or holder due to rolling pressure. The total amount the tool penetrates into the workpiece is approximately 50% of the tooth depth of the wheel (which is shown in TABLE 1 - APPROXIMATE INCREASE IN KNURLED DIAMETERS). When knurling stainless steels, it is important not to roll any longer than necessary as this material work hardens as it is formed. 1mm) to roll the part complete 5/20 revolutions.

#FASTCUT TOOL FEEDS AND SPEEDS PLUS#

Dowel pins with a plus tolerance SHOULD NOT be used because of the possibility of the knurls seizing up and breaking.ДЇor Bump knurling with a Single Tool Holder from the cross-slide, the infeed would normally be. Carbide knurl pins are strongly recommended for all high speed knurl applications. You may find you get longer knurl life and improved appearance by slowing down the spindle to about 50 SFPM (15 m/min) for harder steels and stainless. But to prevent seizing of the rolls on the pin, we recommend a maximum surface speed of about 150 SFPM (Feet/Min) or 50 m/min. For convenience, Knurling is often performed at the same speeds used for turning operations when using high speed steel tool bits.

Fastcut tool feeds and speeds