CN205551497U - Metal cutter after restoreing - Google Patents

Metal cutter after restoreing Download PDF

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Publication number
CN205551497U
CN205551497U CN201620326649.7U CN201620326649U CN205551497U CN 205551497 U CN205551497 U CN 205551497U CN 201620326649 U CN201620326649 U CN 201620326649U CN 205551497 U CN205551497 U CN 205551497U
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angle
degrees
cutting
horizontal width
chamfered edge
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罗朋
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Chengdu Sanyan Precision Cutting Tool Co Ltd
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Chengdu Sanyan Precision Cutting Tool Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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Abstract

The utility model discloses a metal cutter after restoreing, the metal cutter is through retrieving old and useless blade to carry on obtaining after the coping to back knife face, R fillet, rake face, blade part and the chip groove of cutter, metal blade piece after the restoration can be under the circumstances that does not influence production efficiency, with the price of new product 30%~40% reach with 80%~120% and cutting resistance and the chip removal effect in new product life -span, can directly practice thrift 70% cutter cost for the mill.

Description

A kind of repaired after metal cutter
Technical field
This utility model belongs to process tool technical field, particularly to a kind of repaired after metal cutter.
Background technology
Existing metal cutter includes metal grooving cutter and metal cutting cutter, and the metal cutter that existing market uses mostly is import, and domestic also do not have carry out, for cutting knife, the technique repaired, just scrap after new blade makes to be finished, as it is shown in figure 1, its cost is high, utilization rate is low.And owing to cutter material is Wc, belong to rare metal, and falling within national strategy goods and materials, single use is big to the wasting of resources, is unfavorable for energy-saving and emission-reduction.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, one is provided to be repaired by waste and old cutting edge, to reach the 80 of new product～the using effect of 120%, thus reduce factory's cutter use cost, reach energy-saving and emission-reduction and save the metal cutter of scarce resource purpose.
nullFor achieving the above object，This utility model solve its technical problem be the technical scheme is that a kind of repaired after metal cutter，It is characterized in that: the rear knife face of described metal cutter and the angle of perpendicular are relief angle B，The number of degrees of described relief angle B are consistent with the relief angles of former cutting knife，Tolerance is positive and negative 2 °，The rake face of described metal cutter is that the straightway of 0.5～2mm is as cutting knife cutting edge part，Described rake face is anterior angle A with the angle of horizontal plane，The number of degrees of described anterior angle A are 0 °～+25 °，Described metal cutter is provided with chip area，Described chip area is circular arc，Its arc radius R1 is 2～5mm，The relation of actual repair relief angle B that relief angle B1 of described metal cutter R fillet is corresponding with rear knife face: B1 is (B-2 °)～B，At the rake face end cutting edge passivation of described metal cutter curved，Horizontal width S corresponding at its passivation is 0.01～0.04mm，When the horizontal reference of above-mentioned angle is for installing to cutting knife on knife bar，The datum level at the lower plane place of knife bar is level reference.
Described in the utility model repaired after metal cutter, it is provided with negative chamfered edge in the leading section of described rake face, the angle of described negative chamfered edge is-8 °～+10 °, the horizontal width L of described negative chamfered edge is 0.5f～1.3f(mm), f is actually used cutting parameter, represents feed of every rotation (mm/r).
Described in the utility model repaired after metal cutter, its described rake face a length of 0.75～2mm, within described rear knife face, rake face, chip area and negative chamfered edge all reach roughness Ra 0.6 after repairing grinding.
Described in the utility model repaired after metal cutter, its according to cutting attribute be divided into S class material, K class material and P class material；
For the reparation of S class material, the number of degrees of described anterior angle A are+10 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is 0 °～+10 °；
For the reparation of K class material, the number of degrees of described anterior angle A are 0 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-8 °～+8 °；
For the reparation of P class material, the number of degrees of described anterior angle A are+5 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-8 °～+10 °.
Described in the utility model repaired after metal cutter, it is for the reparation of S class material, and when processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+15 °～+25 °, horizontal width S corresponding at cutting edge passivation is 0.025～0.035mm, and the angle of negative chamfered edge is+5 °～+10 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+12 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are+10 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °.
Described in the utility model repaired after metal cutter, it is for the reparation of K class material, and when processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+10 °～+20 °, horizontal width S corresponding at cutting edge passivation is 0.02～0.035mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+5 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-3 °～+5 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are 0 °～+10 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is-8 °～+3 °.
Described in the utility model repaired after metal cutter, it is for the reparation of P class material, and when processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+10 °～+20 °, horizontal width S corresponding at cutting edge passivation is 0.02～0.035mm, and the angle of negative chamfered edge is+5 °～+8 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+5 °～+17 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are+5 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-5 °～+5 °.
This utility model is by being reclaimed by waste and old blade, and the metal cutter obtained after carrying out reconditioning for rear knife face, R fillet, rake face, cutting edge portion and the chip area of cutting knife, metal blade after reparation can be in the case of not affecting production efficiency, reach 80% with the new product life-span～120% and cutting resistance and chip removal effect with the price of new product 30%～40%, can be the cutting knife cost of factory's direct saving 70%.
Accompanying drawing explanation
Fig. 1 is the waste metal cutter structure schematic diagram before reconditioning.
Fig. 2 be by reconditioning after metal cutter structural representation.
Fig. 3 is the structural representation at the fillet of falling R place in this utility model.
Fig. 4,5 and 6 are this utility model structural representations of negative chamfered edge under different operating modes.
Fig. 7 is the structural representation of drag reduction groove on this utility model.
Labelling in figure: 1 is rear knife face, 2 is rake face, and 3 is chip area, and 4 is negative chamfered edge, and 5 is R fillet, and 6 is drag reduction groove, and 7 is knife bar.
Detailed description of the invention
Below this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
nullAs illustrated in figs. 2-7，A kind of repaired after metal cutter，The rear knife face 1 of described metal cutter is relief angle B with the angle of perpendicular，The number of degrees of described relief angle B are consistent with the relief angles of former cutting knife，Tolerance is positive and negative 2 °，The straightway that rake face 2 is 0.5～2mm of described metal cutter is as cutting knife cutting edge part，Described rake face 2 is anterior angle A with the angle of horizontal plane，When described horizontal plane is for installing to cutting knife on knife bar 7，The datum level at the lower plane place of described knife bar 7，The number of degrees of described anterior angle A are 0 °～+25 °，Described metal cutter is provided with chip area 3，Described chip area 3 is in circular arc，Its arc radius R1 is 2～5mm，The tangent line of the point of intersection that described chip area 3 arc surface intersects with rake face 2 and the angle of rake face 2 are within ± 5 °，The relation of actual repair relief angle B that relief angle B1 of described metal cutter R fillet 5 is corresponding with rear knife face 1: B1 is (B-2 °)～B，At the rake face 2 end cutting edge passivation of described metal cutter curved，Horizontal width S corresponding at its passivation is 0.01～0.04mm，When the horizontal reference of above-mentioned angle is for installing to cutting knife on knife bar，The datum level at the lower plane place of knife bar is level reference.
Wherein, the leading section of described rake face 2 is provided with negative chamfered edge 4, the angle of described negative chamfered edge 4 is-8 °～+10 °, the horizontal width L of described negative chamfered edge 4 is 0.5f～1.3f(mm), f is actually used cutting parameter, represent feed of every rotation (mm/r), within described rear knife face, rake face, chip area and negative chamfered edge all reach roughness Ra 0.6 after repairing grinding.
Drag reduction groove 6 it is provided with in the rear on knife face, the described drag reduction groove relief angle relief angle corresponding with the rear knife face of actual repair is consistent, the design of drag reduction groove predominantly needs the operating mode reducing cutting resistance to select, such as process elongate articles, if cutting resistance is big, may result in workpiece deformation and even bend, if workpiece bows just can be avoided after using drag reduction groove, even can improve feeding, thus improve efficiency.
It is divided into S class material, K class material and P class material according to cutting attribute.
For the reparation of S class material, the number of degrees of described anterior angle A are+10 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is 0 °～+10 °.When processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+15 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.035mm, and the angle of negative chamfered edge is+5 °～+10 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+12 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are+10 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °.
For the reparation of K class material, the number of degrees of described anterior angle A are 0 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-8 °～+8 °.When processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+10 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.035mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+5 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-3 °～+5 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are 0 °～+10 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is-8 °～+3 °.
For the reparation of P class material, the number of degrees of described anterior angle A are+5 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-8 °～+10 °.For the reparation of P class material, when processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+10 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.035mm, and the angle of negative chamfered edge is+5 °～+8 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+5 °～+17 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are+5 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-5 °～+5 °.
Restorative procedure of the present utility model, comprises the following steps:
A) knife face 1 after, repairing, stock removal is 0.2～1.5mm, with 0.2～1mm for more excellent, eliminate crizzle and abrading section, use knife face after W10～W28 resin diamond grinding wheel fine grinding, within reaching roughness Ra 0.6, reach roughness Ra 0.4 after grinding for more excellent repairing, be not allow for obvious wheel grinding lines, be not allow for grinding vibration waviness and burn, so as the adhesiving effect of coating, it is ensured that the coefficient of friction when cutting edge non-notch of cutting knife and minimizing use；Described rear knife face is relief angle B with the angle of perpendicular, and the number of degrees of described relief angle B are consistent with the relief angles of former cutting knife, and tolerance is positive and negative 2 °.
B), rake face 2 and chip area 3 are repaired, described rake face is that the straightway of 0.5～2mm is as cutting knife cutting edge part, with rake face a length of 0.75～2mm for more excellent, the stock removal of described rake face and the reparation parameter of roughness are consistent with the reparation parameter of rear knife face, described rake face is anterior angle A with the angle of horizontal plane, and the number of degrees of described anterior angle A are 0 °～+25 °；Described chip area is circular arc, its arc radius R1 is 2～5mm, use W10～W28 resin diamond grinding wheel fine grinding chip area, within reaching roughness Ra 0.6, reach roughness Ra 0.4 after grinding for more excellent repairing, be not allow for obvious wheel grinding lines, be not allow for grinding spy stricture of vagina and burn, so as the adhesiving effect of coating, it is ensured that the coefficient of friction when cutting edge non-notch of cutting knife and minimizing use.
Wherein, negative chamfered edge 4 it is provided with in the leading section of described rake face, negative chamfered edge need to be repaired, use W10～W28 resin diamond grinding wheel fine grinding chip area, within reaching roughness Ra 0.6, roughness Ra 0.4 is reached for more excellent after repairing grinding, it is not allow for obvious wheel grinding lines, it is not allow for grinding and visits stricture of vagina and burn, the angle of described negative chamfered edge is-8～+10 °, the horizontal width L of described negative chamfered edge is 0.5f～1.3f(mm), f is actually used cutting parameter, represents feed of every rotation (mm/r)；
C), the fillet of falling R, the relation of actual repair relief angle B that relief angle B1 of described R fillet is corresponding with rear knife face: B1 is (B-2 °)～B, R fillet roughness Ra 0.8;
D), cutting edge passivation, the end of described negative chamfered edge is carried out cutting edge passivation, be passivated place curved, horizontal width S corresponding at its passivation is 0.01～0.04mm.
E), the cutting knife after grinding reparation is carried out coating and coating post processing.
When the horizontal reference of above-mentioned angle is for installing to cutting knife on knife bar, the datum level at the lower plane place of knife bar is level reference.
It is divided into S class material, K class material and P class material according to cutting attribute, and according to different processing operating modes, carries out different reparation fit systems.Wherein, described S class material: include high temperature alloy difficulties such as (cut material) nickel base superalloy, titanium alloy, cobalt base superalloys and rustless steel etc., there is the metal material of similar cutting attribute；Described K class material is cast iron, mainly includes grey cast-iron and nodular cast iron etc.；Described P class material is general steel, mainly includes carbon steel, steel alloy, mild steel etc..
(1), for the reparation of S class material, the number of degrees of described anterior angle A are+10 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is 0 °～+10 °.
Wherein, for the reparation of S class material, it, according to different processing operating modes, uses corresponding repair mode, particularly as follows:
When processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+15 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.035mm, and the angle of negative chamfered edge is+5 °～+10 °；
When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+12 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °；
When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are+10 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °.
(2), for the reparation of K class material, the number of degrees of described anterior angle A are 0 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-8 °～+8 °.
Wherein, for the reparation of K class material, it, according to different processing operating modes, uses corresponding repair mode, particularly as follows:
When processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+10 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.035mm, and the angle of negative chamfered edge is 0 °～+8 °；
When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+5 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-3 °～+5 °；
When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are 0 °～+10 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is-8 °～+3 °.
(3), for the reparation of P class material, the number of degrees of described anterior angle A are+5 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-8～+10 °；
Wherein, for the reparation of P class material, it, according to different processing operating modes, uses corresponding repair mode, particularly as follows:
When processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+10 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.035mm, and the angle of negative chamfered edge is+5 °～+8 °；
When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+5 °～+17 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °；
When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are+5 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-5 °～+5 °.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.

Claims (7)

  1. null1. one kind repaired after metal cutter，It is characterized in that: the rear knife face of described metal cutter and the angle of perpendicular are relief angle B，The number of degrees of described relief angle B are consistent with the relief angles of former cutting knife，Tolerance is positive and negative 2 °，The rake face of described metal cutter is that the straightway of 0.5～2mm is as cutting knife cutting edge part，Described rake face is anterior angle A with the angle of horizontal plane，The number of degrees of described anterior angle A are 0 °～+25 °，Described metal cutter is provided with chip area，Described chip area is circular arc，Its arc radius R1 is 2～5mm，The relation of actual repair relief angle B that relief angle B1 of described metal cutter R fillet is corresponding with rear knife face: B1 is (B-2 °)～B，At the rake face end cutting edge passivation of described metal cutter curved，Horizontal width S corresponding at its passivation is 0.01～0.04mm，When the horizontal reference of above-mentioned angle is for installing to cutting knife on knife bar，The datum level at the lower plane place of knife bar is level reference.
  2. The most according to claim 1 repaired after metal cutter, it is characterized in that: the leading section of described rake face is provided with negative chamfered edge, the angle of described negative chamfered edge is-8 °～+10 °, the horizontal width L of described negative chamfered edge is 0.5f～1.3f(mm), f is actually used cutting parameter, represents feed of every rotation (mm/r).
  3. The most according to claim 2 repaired after metal cutter, it is characterised in that: described rake face a length of 0.75～2mm, within described rear knife face, rake face, chip area and negative chamfered edge all reach roughness Ra 0.6 after repairing grinding.
  4. 4. according to the metal cutter after repaired described in Claims 2 or 3, it is characterised in that: it is divided into S class material, K class material and P class material according to cutting attribute；
    For the reparation of S class material, the number of degrees of described anterior angle A are+10 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is 0 °～+10 °；
    For the reparation of K class material, the number of degrees of described anterior angle A are 0 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-8 °～+8 °；
    For the reparation of P class material, the number of degrees of described anterior angle A are+5 °～+25 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-8 °～+10 °.
  5. The most according to claim 4 repaired after metal cutter, it is characterized in that: for the reparation of S class material, when processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+15 °～+25 °, horizontal width S corresponding at cutting edge passivation is 0.025～0.035mm, and the angle of negative chamfered edge is+5 °～+10 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+12 °～+20 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are+10 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °.
  6. The most according to claim 4 repaired after metal cutter, it is characterized in that: for the reparation of K class material, when processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+10 °～+20 °, horizontal width S corresponding at cutting edge passivation is 0.02～0.035mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+5 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-3 °～+5 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are 0 °～+10 °, and horizontal width S corresponding at cutting edge passivation is 0.025～0.04mm, and the angle of negative chamfered edge is-8 °～+3 °.
  7. The most according to claim 4 repaired after metal cutter, it is characterized in that: for the reparation of P class material, when processing operating mode and being continuous cutting, the number of degrees of described anterior angle A are+10 °～+20 °, horizontal width S corresponding at cutting edge passivation is 0.02～0.035mm, and the angle of negative chamfered edge is+5 °～+8 °；When processing operating mode and being micro-interrupted cut, the number of degrees of described anterior angle A are+5 °～+17 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is 0 °～+8 °；When processing operating mode and being strong interrupted cut, the number of degrees of described anterior angle A are+5 °～+15 °, and horizontal width S corresponding at cutting edge passivation is 0.02～0.04mm, and the angle of negative chamfered edge is-5 °～+5 °.
CN201620326649.7U 2016-04-19 2016-04-19 Metal cutter after restoreing Active CN205551497U (en)

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CN201620326649.7U CN205551497U (en) 2016-04-19 2016-04-19 Metal cutter after restoreing

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CN205551497U true CN205551497U (en) 2016-09-07

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