SU64261A1 - The method of finishing multiblade cutting tools for all gran m - Google Patents

Description

 MHoro: ic3BHi mbie tools (mills, reamers, etc.), izg (, tog1. El1; | С:;:, iiiiOTpyMeui.;; Biii) ix gtaly (corner1X) of the dyed, alloyed high-speed cutting them after the final grinding operations sharpening is proposed to bring on all the edges that form a cutting edge at the intersection, are polished with circles of foam silicon carbide on a bakelite connection, and it is better to fine tune the speed of a circle above 25 m / s.

OcHOBHOii feature of the proposed method is the use of finishing circles with the same. And cutting properties that allow you to feel clean, without gaps - | ov, notch and with /. Log 1 cutting edges of the tools and g-instrumental steels.

These cBoiicTBa finishing wheels are obtained as a result of the use of fused silicon carbide in a bonded form, which in this form has not been used to finish tools over all grades of multi-edge steel tools. If we compare the properties of the two main abrasive materials, silicon carbide and corundum, then

that iiepBbiii ki abrasive from. shchataet.I am from the second much less.} i,; i.ic.). rpiui -; po:,:; i; -: differ LOW, because i are split into planes under; it is, significantly smaller than 11 °, it is lamer than aepjia of corundum. VNYM 5IZ.TLYASTIKA also CBOIICTBU silicon carbide to form a non-reprobiBO in the process of working new sharp re-cut the face of the mountain-o. -Eggs, -leM this occurs-T at corundum grains, which in the prog esc grinding as much as; rarely split. Finally, silicon carbide grains, especially green ones, have a higher hardness than corundum grains, greater grain sharpness and smoothness of the facet ;.

On the other hand, an analogue of the technological conditions and the mode of grinding and sharpening cutting tools shows that the final wiper scrapers remove a metal layer not exceeding 0.002 - 0.003 mm, and the allowance is sufficient to remove the roughness (ridges) after sharpening in 0, 03 mm. It follows that when fine-tuning the grain gr tool of an abrasive grain should not

experience significant 11 times.

The stated position allowed us to conclude that it is completely useful to use the positive properties of silicon carbide for making finishing circles on steel.

It is also important in the development circles, bakelite connection. Possess more; elasticity than ceramic bonding, bakelite waves are significantly affected by pa obtaining a clean surface from a REALLY tool, redeeming to a certain extent:

The spindle oienna spindle universal sharpening machine.

Prevention and Consideration

Claims (2)

1. Method of finishing multi-bladed rezhush, their tooling from tool steels on all the edges forming the cutting blades, i and i and the fact that the finishing is carried out all around from green silicon carbide on a bakelite link . 2. Acceptance of the method according to claim 1, I distinguish HI and also with the fact that the finishing is carried out at a speed of a circle above 25 ms.