CN111545779A - Complex-forming multi-tooth cutter and machining method and using method thereof - Google Patents
Complex-forming multi-tooth cutter and machining method and using method thereof Download PDFInfo
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- CN111545779A CN111545779A CN202010426451.7A CN202010426451A CN111545779A CN 111545779 A CN111545779 A CN 111545779A CN 202010426451 A CN202010426451 A CN 202010426451A CN 111545779 A CN111545779 A CN 111545779A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/06—Profile cutting tools, i.e. forming-tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/30—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools
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Abstract
The invention relates to the technical field of special turning, in particular to a multi-tooth cutter for complex forming, which comprises rough cutting teeth and finish cutting teeth, wherein the rough cutting teeth and the finish cutting teeth are sequentially arranged along a feeding direction; all the rough cutting teeth and the fine cutting teeth form a comb-shaped structure together; the rough cutting teeth comprise rough cutting tooth first cut surfaces, rough cutting tooth crest lines and rough cutting tooth rear cut surfaces; the fine cutting teeth comprise fine cutting tooth first cutting faces, fine cutting tooth crest lines and fine cutting tooth rear cutting faces; the back cut surface of the rough cutting tooth and the back cut surface of the fine cutting tooth are in the same direction; the included angle between the first cutting surface of each rough cutting tooth and the vertical direction is larger than that between the first cutting surface of each fine cutting tooth and the vertical direction. The invention also relates to a machining method and a using method of the complex-shaped multi-tooth cutter. By the aid of the cutter, the vibration problem in the use process of the cutter can be effectively reduced, the cutter is balanced in stress, the service life of the cutter is prolonged, and machining precision is improved.
Description
Technical Field
The invention relates to the technical field of special turning, in particular to a complex-forming multi-tooth cutter and a machining method and a using method thereof.
Background
Turning is a common machining means, and for most products, common parts can be directly used for turning and cutting, but when some workpieces with special requirements are machined, special parts must be replaced.
In the field of special turning techniques, complicated forming work occupies a large proportion, and the complicated forming work usually requires a large machining allowance for cutting and peeling, and in order to improve efficiency and the quality of a machined surface, simultaneous machining is usually performed by using a complicated forming comb tooth tool.
The existing multi-tooth cutting tool for complex forming generally comprises rough cutting teeth and finish cutting teeth, wherein most of machining allowance is cut off by the rough cutting teeth of the cutting tool, and the finish cutting teeth wrap the workpiece to finish efficient and high-precision machining of the appearance of the workpiece.
In general, designers reduce the shape of the rough cutting teeth according to a certain proportion according to the shape of the finish cutting teeth without considering the influence of a cutting machining mechanism, so that the efficient and stable machining of the rough cutting teeth cannot be realized, the problems of low service life of the rough cutting teeth, unstable machining process, large impact, easy damage of a cutter and the like are easily caused, and even the precision of the finish cutting teeth is reduced.
Disclosure of Invention
The invention aims to provide a multi-tooth cutter formed in a complex mode, and solves the problems that an existing multi-tooth cutter is unstable in machining process and low in cutting precision.
In order to solve the above problems, the following scheme is provided:
a multi-tooth cutter for complex forming comprises rough cutting teeth and finish cutting teeth which are sequentially arranged along a feeding direction, wherein at least two rough cutting teeth are arranged, and at least one finish cutting tooth is arranged; all the rough cutting teeth and the fine cutting teeth form a comb-shaped structure together; the rough cutting teeth comprise rough cutting tooth first cut surfaces, rough cutting tooth crest lines and rough cutting tooth rear cut surfaces; the fine cutting teeth comprise fine cutting tooth first cutting faces, fine cutting tooth crest lines and fine cutting tooth rear cutting faces; the back cut surface of the rough cutting tooth and the back cut surface of the fine cutting tooth are in the same direction; the included angle between the first cutting surface of each rough cutting tooth and the vertical direction is larger than that between the first cutting surface of each fine cutting tooth and the vertical direction.
The scheme has the advantages that:
the invention has at least two rough cutting teeth and one fine cutting tooth which are sequentially arranged along the feeding direction, can effectively buffer the contact between the fine cutting teeth and a workpiece to be machined through a plurality of rough cutting teeth, can reduce the stress impact on the cutter in the machining process and can ensure the stability of the machining process.
In addition, the included angle between the initial cutting surface of each rough cutting tooth and the vertical direction is larger than the included angle between the initial cutting surface of each fine cutting tooth and the vertical direction, namely, the rough cutting teeth are combined oblique cutting structures based on the optimal main deflection angle of cutter cutting, the rough cutting teeth are mainly used for stripping most of redundant processing amount of the workpiece to be processed in a layering mode, and the fine cutting teeth are used for further performing fine cutting processing on the most of redundant workpiece to be processed which is already cut, so that the workpiece with the complex shape which is finally processed and formed is more precise. The invention effectively provides the precision of processing.
Further, the rough cutting teeth comprise a first rough cutting tooth and a second rough cutting tooth which are sequentially arranged along the cutting direction; the first rough cutting teeth comprise first rough cutting tooth first cutting surfaces, first rough cutting tooth crest lines and first rough cutting tooth rear cutting surfaces; the second rough cutting teeth comprise a first rough cutting tooth cutting surface, a second rough cutting tooth crest line and a second rough cutting tooth rear cutting surface.
The two rough cutting teeth can respectively cut off the workpiece to be machined through the cutting surface and the top line.
Furthermore, the first rough cutting tooth cutting surface and the second rough cutting tooth cutting surface form an included angle of 30-60 degrees with the vertical direction.
The cutter structure with balanced stress can be formed by keeping the included angle.
Furthermore, the included angle between the first rough cutting surface of the first rough cutting tooth and the vertical direction is larger than the included angle between the first rough cutting surface of the second rough cutting tooth and the vertical direction; the difference between the included angle of the first rough cutting tooth cutting surface and the vertical direction and the included angle of the second rough cutting tooth cutting surface and the vertical direction is 5-15 degrees.
In the direction of feed, first rough cutting tooth to second rough cutting tooth, the inclination increases gradually, makes the second rough cutting tooth when playing the rough cutting effect, can play the cushioning effect to the back finish cutting tooth, is favorable to whole operation process's stability to go on.
Furthermore, the first rough cutting tooth top line and the second rough cutting tooth top line form an included angle of 95-110 degrees with the vertical direction.
The tip line also has a slope that facilitates cutting and stripping of the excess portion of the work piece.
Furthermore, the included angle between the first rough cutting tooth top line and the vertical direction is more than or equal to the included angle between the second rough cutting tooth top line and the vertical direction; the difference between the included angle of the first rough cutting tooth top line and the vertical direction and the included angle of the second rough cutting tooth top line and the vertical direction is 0-10 degrees.
The included angle of second rough cut addendum line and tangential direction is bigger, and second rough cut addendum line is more gentle than first rough cut addendum line promptly, helps with the smooth transition of treating the machined part contact in-process.
Further, the first rough cutting tooth, the second rough cutting tooth and the second rough cutting tooth are connected with the finish cutting tooth through circular arcs.
Through the connecting portion of the circular arc structure. The transition of each part of the cutter in the feeding process is more stable, the vibration of the cutter is avoided, the impact force on the cutter is reduced, and the service life of the cutter is effectively prolonged.
Furthermore, the included angle between the first rough cutting surface of the second rough cutting tooth and the vertical direction is half of the included angle between the first rough cutting surface of the first rough cutting tooth and the vertical direction.
Such structure is convenient to process, and is favorable to the second rough cutting tooth to play the effect of first rough cutting tooth of transition and finish cutting tooth.
The invention also provides a machining method of the complex forming multi-tooth cutter, which comprises the following steps:
roughly cutting a formed grinding wheel into a comb-shaped structure with at least two rough cutting teeth and one fine cutting tooth;
step two, sequentially polishing rough cutting teeth and finish cutting teeth of the formed grinding wheel by using a sharp grinding wheel, so that included angles between the first cutting surfaces of the rough cutting teeth and the finish cutting teeth and the vertical direction are sequentially reduced from the feeding direction to the back;
polishing the top lines of the rough cutting teeth and the fine cutting teeth of the formed grinding wheel by using a sharp grinding wheel, and sequentially lifting the height positions of the top lines of the rough cutting teeth and the fine cutting teeth backwards in the feeding direction;
grinding the connecting parts between all rough cutting teeth and finishing cutting teeth of the formed grinding wheel by using a sharp grinding wheel to enable the connecting parts to form an arc-shaped structure;
and step five, slowly feeding the grinding tool blank by using a forming grinding wheel to form a complex forming multi-tooth tool structure.
The noun explains:
the backward feeding direction means the forward and backward feeding direction.
The complex forming multi-tooth cutter formed by the method is processed by combining rough cutting teeth with a combined pitched roof layering stripping cutting principle of an optimal main deflection angle, compared with the simple manufacture of rough cutting teeth in the existing multi-tooth cutter, the complex forming multi-tooth cutter formed by the method realizes the efficient and stable processing of rough cutting teeth and meets the precision processing requirement of precision cutting teeth.
The invention also provides a using method of the complex forming multi-tooth cutter, which comprises the following steps:
step one, a complex forming multi-tooth cutter is pushed towards a workpiece to be processed along a feeding direction;
step two, all rough cutting teeth are sequentially contacted with a workpiece to be machined, and redundant parts on the workpiece to be machined are cut off and stripped through the rough cutting teeth firstly;
and step three, after the rough cutting teeth adjacent to the finish cutting teeth are excessively buffered, the finish cutting teeth are contacted with the workpiece to be machined, and the finish cutting teeth cut off the residual redundant parts on the workpiece to be machined.
When the method is adopted to process the workpiece, the rough cutting teeth are used for repeated operation, redundant parts in the workpiece to be processed are cut off and stripped, then the finish cutting teeth are stably transited to a state of being in contact with the workpiece to be processed along the feeding direction through the rough cutting teeth adjacent to the finish cutting teeth, and the problems of uneven stress, vibration, unstable feeding process and the like caused by switching between the cutting teeth in the feeding process of the cutter are effectively avoided.
Drawings
FIG. 1 is a schematic structural view of a complex formed multi-tooth tool according to an embodiment of the present invention.
FIG. 2 is a tooth profile distribution diagram for a complex-shaped multi-tooth tool in accordance with one embodiment of the present invention.
FIG. 3 is a schematic diagram of tooth profile distribution overlap and force of the complex formed multi-tooth tool of FIG. 2.
FIG. 4 is a schematic view of a tooth profile distribution stack for a complex formed multi-tooth tool of the prior art.
Fig. 5 is a schematic view of a superposition of cutting machining of two feeding of a complex-shaped multi-tooth tool in an embodiment of the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: a first rough cutting tooth first cutting surface 1, a first rough cutting tooth crest line 2, a first rough cutting tooth second cutting surface 3, a second rough cutting tooth first cutting surface 4, a second rough cutting tooth crest line 5, a second rough cutting tooth second cutting surface 6, a fine cutting tooth first cutting surface 7, a fine cutting tooth crest line 8, and a fine cutting tooth second cutting surface 9.
Example one
The embodiment is basically as shown in the attached figure 1: the complex forming multi-tooth cutter in the embodiment is a novel cutter structure of a combined pitched roof layered stripping cutting principle of combining rough cutting teeth with an optimal main deflection angle, realizes efficient and stable machining of rough cutting teeth, and meets the precision machining requirement of fine cutting teeth. The complexly formed multi-tooth tool in this embodiment has at least two rough cut teeth and one finish cut tooth, the rough cut tooth means a rough cut tooth, and the finish cut tooth means a finish cut tooth. As shown in fig. 1, a first rough cutting tooth, a second rough cutting tooth and a finish cutting tooth are sequentially arranged from left to right, cutting processing is carried out along the feeding direction of Vf, the rough cutting tooth is mainly used for layering and stripping most of workpiece processing amount, and the finish cutting tooth is used for finally forming and processing workpiece features with complex shapes.
As shown in fig. 1 and 2, two rough cutting teeth are combined oblique cutting structures based on the optimal main deflection angle of the tool cutting, and the combined oblique cutting structures are structurally characterized by comprising a first rough cutting tooth first cut surface 1, a second rough cutting tooth first cut surface 4, a first rough cutting tooth crest line 2, a second rough cutting tooth crest line 5, a first rough cutting tooth rear cut surface 3, a second rough cutting tooth rear cut surface 6 and a plurality of connecting transition arcs. The angle of the first cutting surface of the two rough cutting teeth and the vertical direction of the cutting direction form an included angle (theta 1 and theta 2) of 30-60 degrees, the tangential direction of the top line of the two rough cutting teeth and the vertical direction form an included angle (alpha 1 and alpha 2) of 95-110 degrees, and the first rough cutting tooth back cutting surface 3 and the second rough cutting tooth back cutting surface 6 are in the same direction as the finish cutting tooth back cutting surface 9. The angle difference between the first rough cutting tooth cutting surface 1 and the first rough cutting tooth cutting surface 4 is 5-15 degrees, and the angle difference between the first rough cutting tooth crest line 2 and the second rough cutting tooth crest line 5 is 0-10 degrees, so that the combined pitched roof layered stripping cutting principle of the efficient cutting tool based on the optimal main deflection angle is realized.
In the embodiment, aiming at the action of different cutting teeth of the complex forming multi-tooth cutter in the forming process, the complex forming multi-tooth cutter is divided into rough cutting teeth and fine cutting teeth, and the rough cutting teeth and the fine cutting teeth form a comb-shaped structure together, so the multi-tooth cutter can also be called as a comb tooth cutter. The rough cutting teeth have at least one first rough cutting tooth and one second rough cutting tooth, the cutting face angle of the first rough cutting tooth is designed according to the optimal main deflection angle, so that the cutting of the cutter is stable, as shown in fig. 3, the superposition schematic diagram of the complex forming multi-tooth cutter tooth profile distribution is known, when the cutting face keeps 45-degree cutting and cutting, the main cutting force F is decomposed into the cutting force F2 in the feeding direction and the cutting resistance F1 in the direction of being cut are balanced, and compared with the existing multi-tooth cutter structure, such as the cutting resistance F11 shown in fig. 4 and the cutting force F22 in the feeding direction, the cutter is easy to generate vibration, uneven stress of the cutter and the like during initial cutting.
The cutting surface angle of the second rough cutting tooth is used as a transition angle of the cutting surface angles of the first rough cutting tooth and the finish cutting tooth, and an intermediate angle is taken to ensure the stable transition of cutting and simultaneously ensure the minimum cutting amount of the finish cutting tooth so as to ensure the profile accuracy of the finish cutting tooth. Therefore, the combined oblique cutting tool structure is invented based on the principle of the optimal principal deflection angle for cutting the tool.
In the embodiment, compared with the traditional complex forming comb tooth cutter which directly reduces the cutting distribution structure of the fine cutting teeth, the rough cutting teeth of the embodiment have better cutting stability. Compared with a complex forming comb tooth cutter which directly reduces a finish cutting tooth cutting distribution structure, the finish cutting tooth cutting precision is higher, and the shape precision of a workpiece is better. Because the novel structure adopts the oblique cutting principle of combined change of the cutting surface and the top line, the anti-collapse capability of the cutter is stronger, and the integral performance of the cutter is improved.
The specific implementation process is as follows:
the complex forming multi-tooth cutter is characterized in that during processing, namely when the complex forming multi-tooth cutter is prepared, a forming grinding wheel is roughly opened into a comb-shaped structure with at least two rough cutting teeth and one fine cutting tooth; sequentially polishing rough cutting teeth and fine cutting teeth of the formed grinding wheel by using a sharp grinding wheel, so that included angles between the first cutting surfaces of the rough cutting teeth and the fine cutting teeth and the vertical direction are sequentially reduced from the feeding direction to the rear; grinding the top lines of rough cutting teeth and finish cutting teeth of the formed grinding wheel by using a sharp grinding wheel to enable the height positions of the top lines of the rough cutting teeth and the finish cutting teeth to be sequentially raised backwards in the feeding direction; grinding the connecting parts between all rough cutting teeth and finishing cutting teeth of the formed grinding wheel by using a sharp grinding wheel to enable the connecting parts to form an arc-shaped structure; and (3) slowly feeding the grinding tool blank by using a forming grinding wheel to form a complex forming multi-tooth tool structure.
In this embodiment, the cutting surface angle of the second rough cutting tooth is used as the transition angle of the cutting surface angles of the first rough cutting tooth and the finish cutting tooth, and the intermediate angle is used to ensure the smooth transition of cutting, and simultaneously ensure the minimum cutting amount of the finish cutting tooth, so as to ensure the profile accuracy of the finish cutting tooth. In the embodiment, based on the principle of optimal main deflection angle of cutter cutting, a combined oblique cutting cutter structure is invented, and machining with any cutting times can be realized, as shown in fig. 5, the cutting machining of two times of cutting of a complex-forming multi-tooth cutter is superimposed schematically, and the stability of cutter cutting and the shape precision of cutting are guaranteed.
The cutter preparation of this structure is used into the molding wheel and is repaiied the type, slowly advances to give the lathe on, uses anchor clamps clamping blade in groups, realizes the high-efficient processing of this profile of tooth.
When the complex forming multi-tooth cutter is used, namely, when a workpiece is machined, firstly, the workpiece is cut into a comb-shaped structure of two rough cutting teeth and one fine cutting tooth from front to back in the feeding direction as shown in figure 1; the forward and backward directions refer to directions from a direction close to the workpiece to be machined to a direction away from the workpiece to be machined, and in this embodiment, refer to directions from the first rough cutting tooth to the finish cutting tooth. Cutting along the feed direction of Vf, and successively making first rough cutting tooth and second rough cutting tooth act on the substitute machining workpiece to cut off and strip most of redundant part of workpiece to be machined; then, the cutting is continued, the contact between the workpiece to be machined and the rough cutting teeth is smoothly transited to the contact between the workpiece to be machined and the finish cutting teeth through the second rough cutting teeth, and redundant parts remained on the workpiece to be machined are cut off by the finish cutting teeth.
In the embodiment, the first rough cutting teeth and the second rough cutting teeth are mainly used for stripping most of the workpiece machining amount in a layering mode, and the finish cutting teeth are used for forming and machining the workpiece appearance with a complex shape finally. In the present embodiment, both of the rough cut tooth and the finish cut tooth have sharp edges at the edges of the initial cut surface and the crest line, and thus the cutting and peeling operation can be performed.
Example two
The difference from the first embodiment is that in the present embodiment, there are three rough cutting teeth, one fine cutting tooth, and the heights of all the cutting teeth are gradually increased along the feeding direction, wherein the height of the next cutting tooth is 1.1-1.5 times that of the previous cutting tooth. The multi-tooth cutter is beneficial to effectively cutting off the workpiece to be machined from the previous cutting tooth, and can also provide gentle transition for the contact between the workpiece to be machined and the next cutting tooth, so that the whole multi-tooth cutter is balanced in stress, and various problems caused by uneven stress are avoided.
EXAMPLE III
The difference from the first embodiment is that the complex-shaped multi-tooth tool in the first embodiment is made of cemented carbide.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A multi-tooth cutter for complex forming is characterized by comprising rough cutting teeth and fine cutting teeth which are sequentially arranged along a feeding direction, wherein the number of the rough cutting teeth is at least two, and the number of the fine cutting teeth is at least one; all the rough cutting teeth and the fine cutting teeth form a comb-shaped structure together; the rough cutting teeth comprise rough cutting tooth first cut surfaces, rough cutting tooth crest lines and rough cutting tooth rear cut surfaces; the fine cutting teeth comprise fine cutting tooth first cutting faces, fine cutting tooth crest lines and fine cutting tooth rear cutting faces; the back cut surface of the rough cutting tooth and the back cut surface of the fine cutting tooth are in the same direction; the included angle between the first cutting surface of each rough cutting tooth and the vertical direction is larger than that between the first cutting surface of each fine cutting tooth and the vertical direction.
2. The complexly shaped multi-tooth tool as in claim 1, wherein the rough cut teeth comprise a first rough cut tooth and a second rough cut tooth arranged in series along a cutting direction; the first rough cutting teeth comprise first rough cutting tooth first cutting surfaces, first rough cutting tooth crest lines and first rough cutting tooth rear cutting surfaces; the second rough cutting teeth comprise a first rough cutting tooth cutting surface, a second rough cutting tooth crest line and a second rough cutting tooth rear cutting surface.
3. The complexly formed multi-tooth tool of claim 2, wherein the first rough cut tooth first cut face and the second rough cut tooth first cut face each include an angle of 30-60 degrees from vertical.
4. The complexly formed multi-tooth tool of claim 3, wherein the angle of the first rough cut tooth first cut face to the vertical is greater than the angle of the second rough cut tooth first cut face to the vertical; the difference between the included angle of the first rough cutting tooth cutting surface and the vertical direction and the included angle of the second rough cutting tooth cutting surface and the vertical direction is 5-15 degrees.
5. The complexly shaped multi-tooth tool according to claim 2, wherein the first and second macro-cut addendum lines are each angled 95-110 degrees from vertical.
6. The complexly formed multi-tooth tool according to claim 5, wherein the angle between the first rough cut addendum line and the vertical is equal to or greater than the angle between the second rough cut addendum line and the vertical; the difference between the included angle of the first rough cutting tooth top line and the vertical direction and the included angle of the second rough cutting tooth top line and the vertical direction is 0-10 degrees.
7. The complexly shaped multi-tooth tool as in claim 2, wherein the first and second rough cut teeth and the second rough cut teeth and finish cut teeth each have a circular arc connection therebetween.
8. The complexly formed multi-tooth tool of claim 4, wherein the angle of the second rough cut tooth first cut face to the vertical is half the angle of the first rough cut tooth first cut face to the vertical.
9. The machining method for the complexly formed multi-tooth cutter is characterized by comprising the following steps of:
roughly cutting a formed grinding wheel into a comb-shaped structure with at least two rough cutting teeth and one fine cutting tooth;
step two, sequentially polishing rough cutting teeth and finish cutting teeth of the formed grinding wheel by using a sharp grinding wheel, so that included angles between the first cutting surfaces of the rough cutting teeth and the finish cutting teeth and the vertical direction are sequentially reduced from the feeding direction to the back;
polishing the top lines of the rough cutting teeth and the fine cutting teeth of the formed grinding wheel by using a sharp grinding wheel, and sequentially lifting the height positions of the top lines of the rough cutting teeth and the fine cutting teeth backwards in the feeding direction;
grinding the connecting parts between all rough cutting teeth and finishing cutting teeth of the formed grinding wheel by using a sharp grinding wheel to enable the connecting parts to form an arc-shaped structure;
and step five, slowly feeding the grinding tool blank by using a forming grinding wheel to form a complex forming multi-tooth tool structure.
10. The use method of the complexly formed multi-tooth cutter is characterized by comprising the following steps of:
step one, a complex forming multi-tooth cutter is pushed towards a workpiece to be processed along a feeding direction;
step two, all rough cutting teeth are sequentially contacted with a workpiece to be machined, and redundant parts on the workpiece to be machined are cut off and stripped through the rough cutting teeth firstly;
and step three, after the rough cutting teeth adjacent to the finish cutting teeth are excessively buffered, the finish cutting teeth are contacted with the workpiece to be machined, and the finish cutting teeth cut off the residual redundant parts on the workpiece to be machined to finish machining.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010426451.7A CN111545779A (en) | 2020-05-19 | 2020-05-19 | Complex-forming multi-tooth cutter and machining method and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010426451.7A CN111545779A (en) | 2020-05-19 | 2020-05-19 | Complex-forming multi-tooth cutter and machining method and using method thereof |
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