CN201423463Y - Titanium alloy covering countersink drill - Google Patents
Titanium alloy covering countersink drill Download PDFInfo
- 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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- titanium alloy
- blade
- covering
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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
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.
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 |
Family
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 |
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CN (1) | CN201423463Y (en) |
Cited By (1)
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 |
-
2009
- 2009-06-01 CN CN2009200141080U patent/CN201423463Y/en not_active Expired - Fee Related
Cited By (2)
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 |