Disc cutter for metal: GOST, types, choice, purpose

supplies disc cutters for metal on favorable retail and wholesale terms. Such a tool is made from high-speed steel, which contains up to 5% cobalt or molybdenum. Milling cutters are used for cutting metals and cutting grooves of various sizes in workpieces. Depending on the model, the tool is used for processing steels of different grades (carbon, stainless, alloyed, etc.), aluminum, nickel-containing and other alloys, precious and other metals. Accordingly, the scope of application of disk cutters includes not only construction and heavy industry, but also jewelry, furniture workshops, and all other enterprises where there is a technical need for high-quality metalworking.

Design Features

For work on a milling machine, they mainly use cutting and slotting disc cutters for metal GOST 2679-93. They are a thin disk with teeth along the edge - the outer diameter. They are made from high-alloy steels of the tool group. Main elements of the cutter:

hub with mounting hole;
disk;
teeth

The thickness of the hub is the same as the disk or greater than it within 0.2 mm. It has a mounting hole with or without a slot. The tool is mounted on a mandrel mounted on the machine spindle. Fixed with a washer and nut. For circular saws with a diameter of more than 200 mm, driver holes are provided as standard. They are drilled on the bushing in the amount of 4 pieces.

According to their purpose, disc cutters are divided into 2 classes:

cutting - for performing cutting and slotting work;
slotted - cutting splines on shafts, cutting grooves.

One of the main characteristics that affects cutting cleanliness and productivity is the type of tool - tooth size: small, medium and large.

The teeth themselves can be solid, cut along the edge of the disk, or inserted. Sharpening is done:

straight, along the cutting edge;
on 3 working sides - front and side;
with a backing – the cutting edge and the back side of the tooth.

The method of sharpening and the shape of the tooth are determined by the purpose of the tool, the hardness and viscosity of the metal being processed, and productivity.

Cut-off

A circular saw for metal has a circular cutting cutter; the tooth is cut from the body of the tool. The outer diameter size according to GOST 2679-93 is from 20 mm to 315 mm. The hole may have a keyway. The hub is missing in most cases. The cutting cutter has no difference in thickness.

Download GOST 2679-93

The profile of the chip flutes depends on the type of disk cutter and the number of teeth. The angle is maintained at 60 degrees, the depth of the groove and the sharpening angle change. On a medium and small tooth, a backing is made at an angle of up to 20 degrees relative to the tangent line of the outer diameter of the disc. The smaller the tooth, the less the tool feed, since the chips should flow out of the groove and not clog the grooves.

On type 3 cutters – with large teeth – the side surfaces of the cutting edge are sharpened. Combined with a deep groove profile, this allows for fast cutting with high feed rates.

When the circular saw operates, coolant is supplied to the cutting area. It promotes the flow of chips and prevents overheating that occurs when cutting metal with a cutter and friction of metal surfaces.

Slotted

Keyways and grooves have a specific configuration and require high precision and cleanliness of processing. For a slotted disk cutter, these parameters are ensured by the shape of the tooth and sharpening along three surfaces. The cutting edge on the sides forms a right angle.

Slotted disc cutters have a well-defined hub protruding above the cutter body by 0.2–0.6 mm.

The mounting hole has a keyway, which allows cutting with greater force, avoiding turning the tool on the mandrel.

Teeth are set - the plates are inserted into grooves in the body of the cutter and soldered. On large-diameter tools, fastening with wedges is possible. Assembly is carried out on a special tool plate, which ensures greater accuracy along the plane of the outer cutting edges. After a set of plates and their fastening, the disk cutter is checked for axial and radial runout. To do this, it is put on a mandrel and rotated. The indicator head is alternately brought to the end and radius.

Disc cutters Julia HSS – Dmo5 (M2 – W.Nr. 1.3343)

*Diameter (mm)*	*Bore hole diameter (mm)*	*Thickness (mm)*	*Hub(mm)*	*Axial runout*	NEUTRO	VAPO	YELLOW TIGER	GRAY SHARK	RED DRAGON	BLACK HAWK	SILVER FOX
160	32	1,2	75	0,2	42,57	43,42	54,14	54,87	55,78	57,06	65,22
	32	1,5	75	0,2	39,89	40,68	51,46	52,25	53,1	54,38	62,54
	32	2	75	0,2	40,68	41,47	52,25	52,98	53,9	55,18	63,34
175	32	1,2	75	0,2	43,18	44,09	54,75	55,54	56,39	57,67	65,95
	32	1,5	75	0,2	40,44	41,23	51,95	52,74	53,59	54,93	63,15
	32	2	75	0,2	41,17	42,02	52,74	53,53	54,38	55,66	63,88
200	32	1	100	0,2	54,99	56,09	69,06	70,04	71,07	72,35	80,75
	32	1,2	100	0,2	49,88	50,85	63,95	64,86	65,95	67,23	75,64
	32	1,5/1,6	90	0,2	40,38	41,17	54,44	55,36	56,45	57,73	66,14
	32	1,8	90	0,2	38,49	39,28	52,62	53,53	54,63	55,91	64,31
	32	1,8	90	0,2	38,49	39,28	52,62	53,53	54,63	55,91	64,31	25,4/32	2	90	0,2	41,41	42,26	55,54	56,45	57,55	58,83	67,23
	32	2,5	90	0,2	50,49	51,52	64,55	65,53	66,62	67,9	76,25
	225	32	1,2	100	0,2	51,83	52,86	68,45	69,55	70,83	72,78	82,22
32		1,5/1,6	90	0,2	47,56	48,54	64,19	65,28	66,56	68,51	77,95
32/40		1,8	90	0,2	46,1	47,01	62,73	63,88	65,1	67,05	76,49
32/40		1,9/2,0	90	0,2	42,02	42,81	58,65	59,74	61,02	62,91	72,35
32		2,5	90	0,2	57,55	58,71	74,24	75,33	76,61	78,5	87,94
250	32	1	100	0,2	65,22	66,56	83,31	84,47	85,87	88,12	98,35
	25,4/32	1,2	100	0,2	52,01	53,04	70,04	71,25	72,59	74,91	85,14
	32	1,5/1,6	100	0,2	45,37	46,28	63,4	64,61	65,95	68,21	78,44
	25,4/32/40	2	100	0,2	46,77	47,68	64,8	66,02	67,36	69,61	79,84
	25,4/32/40	2	100	0,2	46,77	47,68	64,8	66,02	67,36	69,61	79,84	25,4/32/40	2,5	100	0,2	52,25	53,29	70,28	71,5	72,9	75,15	85,38
	32	3	100	0,2	73,81	75,27	91,84	93,06	94,4	96,65	106,88
	275	32	1,2	100	0,25	60,6	61,81	81,48	82,88	84,47	87,39	99,63
32		1,6	100	0,25	55,24	56,33	76,13	77,46	79,05	81,97	94,27
32/40		2	100	0,25	55,54	56,64	76,43	77,83	79,41	82,28	94,58
25,4/32/40		2,5	100	0,25	61,51	62,73	82,34	83,74	85,32	88,24	100,55
32/40		3	100	0,25	81,61	83,19	102,43	103,83	105,42	108,34	120,64
300	32/40	1,6	100	0,25	77,04	78,56	100,73	102,25	104,08	107,31	122,9
	32/40	2	100	0,25	73,81	75,27	97,5	99,02	100,85	104,08	119,67
	32/38/40	2,5	100	0,25	74,72	76,25	98,41	100	101,82	105,05	120,64
	32/38/40	2,5	100	0,25	74,72	76,25	98,41	100	101,82	105,05	120,64	32/40	3	100	0,25	86,72	88,43	110,41	112	113,76	116,99	132,64
	315	32/40	1,6	100	0,25	98,84	100,85	123,93	125,64	127,52	130,75	147,87
40		1,8	100	0,25	91,78	93,6	116,87	118,57	120,46	123,69	140,8
32/40		2	100	0,25	82,09	83,74	107,18	108,83	110,78	114	131,06
32/40		2,5	100	0,25	83,13	84,77	108,22	109,86	111,75	114,98	132,09
32/40		2,5	100	0,25	83,13	84,77	108,22	109,86	111,75	114,98	132,09	32/40	3	100	0,25	93,36	95,25	118,45	120,16	122,04	125,27	142,38
32/40		3,5	100	0,25	99,08	101,03	124,18	125,82	127,77	130,94	148,05
325		32/40	2	120	0,25	92,08	93,91	117,78	119,49	121,43	124,66	143,36
	32/40	2,5	120	0,25	94,82	96,71	120,46	122,17	124,11	127,34	146,04
	40	3	120	0,25	106,7	108,83	132,4	134,1	136,05	139,28	157,97
350	32/40/50	1,8	120	0,25	116,5	118,82	144,09	145,98	148,05	152,25	172,35
	32/40/50	2	120	0,25	98,11	100,06	125,76	127,59	129,72	133,86	153,96
	32/40/50	2,5	120	0,25	98,11	100,06	125,76	127,59	129,72	133,86	153,96
	32/40/50	3	120	0,25	108,65	110,78	136,23	138,12	140,19	144,39	164,49
	32/40/50	3,5	120	0,25	124,18	126,67	151,82	153,65	155,78	159,98	180,02
370	32/40/50	2,5	120	0,3	139,64	142,45	171,8	173,93	176,37	181,24	208,58
	32/40/50	3	120	0,3	140,68	143,48	172,83	174,97	177,4	182,21	209,56
	32/40	3,5	120	0,3	162,72	165,95	194,88	197,01	199,45	204,26	231,6
400	40/50	2,2	130 x 2.5	0,3	181,48	185,08	221,8	224,48	227,52	232,7	264,37
	40/50	2,5	120	0,3	165,65	168,94	205,96	208,64	211,69	216,86	248,53
	32/40/50	3	120	0,3	159,92	163,15	200,24	202,92	206,02	211,14	242,81
	40/50	3,5	120	0,3	168,75	172,1	209,07	211,75	214,79	219,97	251,64
	50	4	120	0,3	194,64	198,53	234,95	237,63	240,74	245,85	277,52
425	40/50	2,5	120	0,3	198,41	202,43	241,59	244,45	247,74	254,5	290,55
	40/50	3	120	0,3	184,53	188,18	227,64	230,51	233,8	240,56	276,67
	50	3,5	120	0,3	201,15	205,17	244,27	247,19	250,48	257,24	293,29
	50	3,5	120	0,3	201,15	205,17	244,27	247,19	250,48	257,24	293,29	50	4	120	0,3	217,84	222,16	260,96	263,82	267,11	273,87	309,98
	450	40/50	2,5	130	0,3	260,04	265,28	312,23	315,71	319,66	325,82	371,31
40/50		3	130	0,3	237,75	242,5	289,94	293,42	297,37	303,53	349,02
40/50		3,5	130	0,3	255,72	260,83	307,85	311,32	315,28	321,43	366,92
40/50		3,5	130	0,3	255,72	260,83	307,85	311,32	315,28	321,43	366,92	40/50	4	130	0,3	278,31	283,85	330,44	333,91	337,93	344,02	389,58
500		40/50	3	130	0,3	298,65	304,62	353,59	357,3	361,44	367,9	423,07
	40/50	3,5	130	0,3	329,53	336,11	384,52	388,18	392,38	398,83	454,01
	40/50	4	130	0,3	357,54	364,67	412,54	416,19	420,39	426,79	482,02
	40/50	4	130	0,3	357,54	364,67	412,54	416,19	420,39	426,79	482,02	40/50	5	130	0,3	405,35	413,45	460,34	464	468,2	474,65	529,83
	525	50	3,5	140	0,35	371,06	378,49	427,76	431,54	435,86	442,93	509,37
50		4	140	0,35	405,96	414,12	462,66	466,43	470,76	477,82	544,26
50		4	140	0,35	405,96	414,12	462,66	466,43	470,76	477,82	544,26	550	50/90/140	3	200/225	0,35	465,64	474,96	525,45	529,4	533,97	541,4	616,8
50/90/140	3,5	140/200/225	0,35	420,88	429,28	480,62	484,64	489,21	496,58	572,03
50/90/140	4	140/200/225	0,35	427,27	435,8	487,02	491,04	495,6	502,97	578,43
50/90/140	4	140/200/225	0,35	427,27	435,8	487,02	491,04	495,6	502,97	578,43	50/90/140		5	140/200/225	0,35	494,45	504,37	554,25	558,21	562,78	570,21	645,66
600	50/90/140	3,5	225	0,35	524,53	535,07	592,5	597	602,18	612,23	701,69
	50/90/140	4	200/225	0,35	509,12	519,29	577,03	581,6	586,77	596,76	686,28
	50/90/140	5	200/225	0,35	567,28	578,67	635,25	639,75	644,93	654,98	744,44
620	140	4	225	0,35	605,47	617,59	673,43	678	683,18	693,16	797,12
	140	5	225	0,35	673,01	686,46	740,97	745,48	750,65	760,64	864,6

Prices for disc cutters are indicated in USD. incl. VAT 18%. 1 USD = 1 € at the rate of the Central Bank of the Russian Federation

Purpose of the tool

Cutting cutters manufactured in accordance with GOST 2679-93 are intended for processing cast iron and steel blanks and parts. They perform parting, trimming, milling grooves and spline grooves on external surfaces. A disk cutter for metal is used in various operations:

cutting pieces from rolled products;
trimming casting allowances and profits on small parts;
cutting grooves for fixing parts;
milling of key and spline grooves.

The smooth round axles in the conveyor chain do not fall out of their bushings only due to the fact that a plate is inserted into a narrow slot made by a circular saw.

The grooves at the end of the castle nut have a variable cross-section. Their sides are formed by rays from the center of the radius. Therefore, they are cut out in 2 passes, first along the tangent of one side, then the second end of the crown sample is cut to size.

The splines are cut using rectangular teeth with high dimensional accuracy according to H6 and H7. The spline width and depth are normalized and the tool is manufactured to the appropriate size and configuration.

Nuances of equipment selection

Cast iron is processed at low speeds of the cutting tool with low feed. The chips formed are fine, like dust. To work with such material, metal cutting disc cutters GOST 2678-93 are suitable. When cutting grooves according to accuracy class 4 and higher, a slotting tool is used.

The selection of grooves in parts such as shafts made of carbon and high-alloy steels is carried out on milling and gear cutting machines using disk cutters with brazed plates of the appropriate configuration.

The tool can be used on two-column horizontal milling machines if it is necessary to make grooves on the side of a large part. The area of use of discs with teeth is wide.

Varieties by processing method

In order to choose the right wood cutter for a hand router, you need to have an idea of what types are used for specific types of work with workpieces. According to this characteristic, cutting tools are divided into 5 main types:

End.
Grooved.
Edges.
Combined.
Curvy.

Let us analyze in detail the main features and nuances of using each of them.

End

Having a structure similar to a drill, an end mill, however, differs from it in that its working part extends over the entire area of the cutting edge. That is, wood is sampled with the entire head part. There are the following varieties:

Profile.
Spherical.
Conical.
Spiral.
End
Burr cutters (cutters).

Most end mills have a universal purpose. Thus, spiral varieties allow you to drill and select grooves, quarters, and process ends; profile varieties allow you to make grooves of complex geometry, create ornaments, trim, cutters allow you to finish surfaces, engrave, select special shapes of holes and grooves.

Wood end mill set Source fainaidea.com

Grooved

The very name of the groove cutter reveals the nature of its application - the choice of grooves. However, they differ in the following modifications:

Fillet. A semicircular sample is formed.
Conical. Creates a V-shaped groove and is also used for carving surfaces.
Spiral. They have a structure similar to a drill, but with a larger working part.
T-shaped. They are used to create grooves of the type where one part slides into another.
Dovetail. Similar to the above modification - with the difference that the cross-section of the base has the shape of a trapezoid.
Shaped. It has a wide variety of species. It is used both for making grooves and for processing ends.
Straight or cylindrical. Create a rectangular groove.
Combined. They are used to form interlocking joints - when assembling linings, panels, and panels.

Slot milling cutter with performance characteristics displayed Source static-sl.insales.ru

Recommendation! When choosing a specific type of wood cutter for a hand router, you need to have an idea of what they are like in terms of workmanship, thermal strength, connection of the cutting area with the tail part and solder material. When processing hardwood, a tool with weak soldering will soon lose its longitudinal stability and quickly fail.

Edge

An edge cutter is used to create an edge that is smooth and perpendicular to the plane of the workpiece. The following types are distinguished:

Direct. Designed to create an end perpendicular to the upper plane.
Moulded. Straight, arched, wavy edges are formed. Used for applying complex patterns. There are also double cutters with the ability to adjust the distance between the blades.