CN201423463Y - Titanium alloy covering countersink drill - Google Patents

Titanium alloy covering countersink drill Download PDF

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Publication number
CN201423463Y
CN201423463Y CN2009200141080U CN200920014108U CN201423463Y CN 201423463 Y CN201423463 Y CN 201423463Y CN 2009200141080 U CN2009200141080 U CN 2009200141080U CN 200920014108 U CN200920014108 U CN 200920014108U CN 201423463 Y CN201423463 Y CN 201423463Y
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CN
China
Prior art keywords
angle
degree
titanium alloy
blade
covering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009200141080U
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Chinese (zh)
Inventor
张秀云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Aircraft Industry Group Co Ltd
Original Assignee
Shenyang Aircraft Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang Aircraft Industry Group Co Ltd filed Critical Shenyang Aircraft Industry Group Co Ltd
Priority to CN2009200141080U priority Critical patent/CN201423463Y/en
Application granted granted Critical
Publication of CN201423463Y publication Critical patent/CN201423463Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a titanium alloy covering countersink drill which is the structural improvement of a covering countersink drill for processing holes on a titanium alloy covering componentand is aimed at solving the problem that currently, no covering countersink drill for processing titanium alloy material is available. The titanium alloy covering countersink drill comprises a blade,a cutter body, a cutter bar and pins. The blade is installed on the cutter body which is installed and fixed on the cutter bar by the pins; the rake angle on the blade is arranged to be 0-3 degrees and the clearance angle is arranged to be 12-16 degrees; the blade inclination angle is arranged to be 0 degree; the groove angle is arranged to be 50-60 degrees; and the centripetal angle is arranged to be 1-3 degrees. The titanium alloy covering countersink drill has the advantages of reducing friction, reducing the cutting temperature and prolonging the service life of the cutter.

Description

Titanium alloy covering counterbit
Technical field:
The invention is to being used for the improvement of the hole usefulness covering counterbit structure on the machining titanium alloy skin part.
Background technology:
The titanium alloy material cutting ability is relatively poor, at present, use the hole on the high-speed steel counterbit processing covering of processing steel part in the hole processing on skin part, anterior angle γ on the blade of this high-speed steel counterbit=12 degree, relief angle α=12 degree, cutting edge inclination β=0 degree, groove angle θ=50 degree, angle ε=45 minute entad, this kind cutter can not be used for machining titanium alloy, reason is: anterior angle is 12 degree, anterior angle is too big, smear metal contacts shorter with rake face, cutting force is concentrated and is acted near the cutting edge, the cutting edge position is subjected to the crooked of cutting force and impacts, and edge strength is not enough, is easy to generate tipping; Because the cutting temperature of titanium alloy is the twice of common 45 steel, promptly the heat dispersion of titanium alloy material when cutting is poor simultaneously, and the temperature of point of a knife part is too high, wearing and tearing easily, the service life of having reduced cutter; Relief angle is 12 degree, relief angle hour, and the friction of back knife face and cutting surface increases, and the temperature rising that rubs and cause has increased the cutting resistance that causes because of frictional force; Groove angle is 50 degree, because the viscosity of titanium alloy material is big, smear metal is agglomerating, and the below does not have chip removal space, agglomerating smear metal meeting to allow the covering counterbit can't operate as normal during ream covering hole; Entad the angle is 45 minutes, because the resilience amount of titanium alloy material is big, down during spot-facing, the hole rubs with the covering counterbit and increased cutting resistance greatly.
Summary of the invention:
The purpose of the invention provide a kind of on the titanium alloy material skin part spot-facing reduce friction, reduce cutting temperature, the titanium alloy covering counterbit that prolongs cutter life; The purpose of the invention is to realize by following technical scheme: titanium alloy covering counterbit, comprise blade, cutter hub, knife bar, pin, blade is contained on the cutter hub, cutter hub is contained on the knife bar and fixes with pin, is shaped on anterior angle, relief angle, cutting edge inclination, groove angle, angle entad on the blade, it is characterized in that the anterior angle on the blade is made 0 to 3 degree, relief angle is made 12 to 16 degree, cutting edge inclination is made 0 degree, and groove angle is made 50 to 60 degree, and entad 1 to 3 degree is made at the angle.
The advantage of the invention: littler because anterior angle is made 0 to 3 degree than former anterior angle 12 degree, help the chip breaking chip removal, can also strengthen the heat dispersion of cutting edge rigidity and cutting edge, improve the durability of covering counterbit, the service life of having improved cutter; Relief angle is made 12 degree to 16 degree, and is bigger than former relief angle 12 degree, reduces the friction of back knife face and cutting surface, reduces the cutting temperature that friction causes, and reduced the cutting resistance that causes because of frictional force, guarantees that cutting teeth has enough cutting hardnesses; Cutting edge inclination is made 0 degree, and the cutter processing and manufacturing is easy; Groove angle is made 50 degree to 60 degree, and is bigger than former groove angle, increased and held bits, chip removal space, and major part is discharged in the smear metal meeting from the side, and chip removal is effective; Entad 1 to 3 degree is made at the angle, bigger than former entad angle, because of the resilience amount of titanium alloy material big, down during spot-facing, the friction of hole and covering counterbit is big, has increased cutting resistance, entad strengthens to have reduced friction behind the angle, also reduce the cutting temperature that friction causes simultaneously, reduced the cutting resistance that causes because of frictional force.
Description of drawings:
Fig. 1 is a titanium alloy covering counterbit structural representation;
Fig. 2 is the side view schematic diagram of Fig. 1;
Fig. 3 is the A-A sectional views among Fig. 2.
Among the figure: 1, blade 2, cutter hub 3, knife bar 4, the poor angle ε of pin γ anterior angle α relief angle β cutting edge inclination θ tooth angle s blade thickness entad
The specific embodiment:
Titanium alloy covering counterbit, comprise blade, cutter hub, knife bar, pin, blade is contained on the cutter hub, cutter hub is contained on the knife bar and fixes with pin, is shaped on anterior angle, relief angle, cutting edge inclination, groove angle, angle entad on the blade, it is characterized in that the anterior angle on the blade is made 0 to 3 degree, relief angle is made 12 to 16 degree, cutting edge inclination is made 0 degree, and groove angle is made 50 to 60 degree, and entad 1 to 3 degree is made at the angle.
Blade is selected the Y330 Hardmetal materials for use, and it does not contain with titanium alloy very big affinity substance, therefore can improve the cutter wearability;
Because anterior angle is made 0 to 3 degree, littler than former anterior angle 12 degree, help the chip breaking chip removal, can also strengthen the heat dispersion of cutting edge rigidity and cutting edge, improve the durability of covering counterbit, the service life of having improved cutter; Relief angle is made 12 degree to 16 degree, and is bigger than former relief angle 12 degree, reduces the friction of back knife face and cutting surface, reduces the cutting temperature that friction causes, and reduced the cutting resistance that causes because of frictional force, guarantees that cutting teeth has enough cutting hardnesses; Cutting edge inclination is made 0 degree, and the cutter processing and manufacturing is easy; Groove angle is made 50 degree to 60 degree, and is bigger than former groove angle, increased and held bits, chip removal space, and major part is discharged in the smear metal meeting from the side, and chip removal is effective; Entad 1 to 3 degree is made at the angle, bigger than former entad angle, because of the resilience amount of titanium alloy material big, down during spot-facing, the friction of hole and covering counterbit is big, has increased cutting resistance, entad strengthens to have reduced friction behind the angle, also reduce the cutting temperature that friction causes simultaneously, reduced the cutting resistance that causes because of frictional force.

Claims (1)

1, titanium alloy covering counterbit, comprise blade, cutter hub, knife bar, pin, blade is contained on the cutter hub, cutter hub is contained on the knife bar and fixes with pin, is shaped on the poor angle of anterior angle, relief angle, cutting edge inclination, tooth, angle entad on the blade, it is characterized in that the anterior angle on the blade is made 0 to 3 degree, relief angle is made 12 to 16 degree, cutting edge inclination is made 0 degree, and groove angle is made 50 to 60 degree, and entad 1 to 3 degree is made at the angle.
CN2009200141080U 2009-06-01 2009-06-01 Titanium alloy covering countersink drill Expired - Fee Related CN201423463Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200141080U CN201423463Y (en) 2009-06-01 2009-06-01 Titanium alloy covering countersink drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200141080U CN201423463Y (en) 2009-06-01 2009-06-01 Titanium alloy covering countersink drill

Publications (1)

Publication Number Publication Date
CN201423463Y true CN201423463Y (en) 2010-03-17

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ID=42022898

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200141080U Expired - Fee Related CN201423463Y (en) 2009-06-01 2009-06-01 Titanium alloy covering countersink drill

Country Status (1)

Country Link
CN (1) CN201423463Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581353A (en) * 2012-03-22 2012-07-18 沈阳飞机工业(集团)有限公司 Designing and processing method of enveloped counter bit for titanium alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581353A (en) * 2012-03-22 2012-07-18 沈阳飞机工业(集团)有限公司 Designing and processing method of enveloped counter bit for titanium alloy
CN102581353B (en) * 2012-03-22 2014-02-26 沈阳飞机工业(集团)有限公司 Designing and processing method of enveloped counter bit for titanium alloy

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100317

Termination date: 20120601