CN102962515B - Rough slotting broach for processing high-temperature alloy and titanium alloy workpieces - Google Patents
Rough slotting broach for processing high-temperature alloy and titanium alloy workpieces Download PDFInfo
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- CN102962515B CN102962515B CN201210495411.3A CN201210495411A CN102962515B CN 102962515 B CN102962515 B CN 102962515B CN 201210495411 A CN201210495411 A CN 201210495411A CN 102962515 B CN102962515 B CN 102962515B
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Abstract
The invention discloses a rough slotting broach for processing high-temperature alloy and titanium alloy workpieces. The rough slotting broach comprises a knife handle and a knife body, wherein knife teeth arranged on the knife body are the same in structure and each comprises a tooth back and a chip pocket; the tooth distances t between the adjacent knife teeth are the same; the chip pocket of each knife tooth comprises an edge back, a pocket bottom arc surface, a chip rolling table, a transitional arc surface and a front knife surface which are connected in sequence; the edge back is a tilted surface, one end of the edge back is connected with the tooth back of the current knife tooth, and the other end of the edge back is connected with the pocket bottom arc surface; the front knife surface is the tilted surface, one end of the front knife surface is connected with the tooth back of the next knife tooth, and the other end of the front knife surface is connected with the transitional arc surface; and the chip rolling table is the tilted surface, the included angle between the chip rolling table and a vertical plane is a chip rolling table angle omega, and the chip rolling table angle omega is 30 DEG.
Description
Technical field
The invention belongs to cutter field, particularly a kind ofly process the thick fluting broaching tool that high temperature alloy and titanium alloy workpiece are used.
Background technology
High temperature alloy and titanium alloy workpiece are carried out to thick fluting broaching, have the problems such as cutting force is large, resilience large, volume bits are difficult for.Existing thick fluting broaching tool, due to the unreasonable structure of chip pocket, causes cutter tooth intensity lower, and volume bits effect is bad, and smear metal is comparatively loose and volume is large, thereby is difficult to ensure the crudy of high temperature alloy or titanium alloy workpiece, and work efficiency is low, and service life is shorter.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of improved thick fluting broaching tool is provided, to strengthen the cutter tooth intensity of broaching tool, improve volume bits effect, increase and hold bits amount, make it be applicable to the processing of high temperature alloy or titanium alloy workpiece.
Technical scheme of the present invention: the chip pocket structure to existing thick fluting broaching tool is improved, increase volume bits platform, shorten rake face length, changed the angle (being anterior angle) of rake face and vertical guide, changed the angle (being groove angle) of land and horizontal plane.
The thick fluting broaching tool that processing high temperature alloy of the present invention and titanium alloy workpiece are used, formed by handle of a knife and cutter hub, the each knife-tooth structure arranging on described cutter hub is identical, by the back of tooth and chip pocket composition, tooth pitch t between adjacent cutter tooth is equal, and the chip pocket of each cutter tooth joins and forms successively by land, bottom land cambered surface, volume bits platform, transition cambered surface and rake face; Described land is inclined-plane, and the back of tooth of its one end and this cutter tooth joins, and its other end and bottom land cambered surface are joined, and the angle of itself and horizontal plane is groove angle, groove angle β=60o; Described rake face is inclined-plane, the back of tooth of its one end and next cutter tooth joins, its other end and transition cambered surface are joined, its degree of depth h1=0.25 h ~ 0.3h, described h is capacity chip slot depth, the angle of itself and vertical guide is anterior angle γ, in the time of processing high temperature alloy workpiece, anterior angle γ=18o, in the time of machining titanium alloy workpiece, anterior angle γ=10o; Described volume bits platform is inclined-plane, and it is volume bits corner of table ω with the angle of vertical guide, and volume is considered corner of table ω=30o to be worth doing; The radius R 2=0.33 h ~ 0.48h of described bottom land cambered surface 8, described h is capacity chip slot depth; The radius R 1=0.1 h ~ 0.15h of described transition cambered surface, described h is capacity chip slot depth; The angle of the described back of tooth and horizontal plane is relief angle α, in the time of processing high temperature alloy workpiece, and relief angle α=4o, in the time of machining titanium alloy workpiece, relief angle α=6o.
The thick fluting broaching tool that processing high temperature alloy of the present invention and titanium alloy workpiece are used, its capacity chip slot depth h be the horizontal plane of intersection of rake face and the back of tooth to the distance between bottom land cambered surface lowest part, h=0.35t ~ 0.45t, described t is the tooth pitch between adjacent cutter tooth,
(empirical equation), in formula, lo is the broaching length of workpiece of being broached.
The thick fluting broaching tool that processing high temperature alloy of the present invention and titanium alloy workpiece are used, the length g=0.3 t ~ 0.35t of its back of tooth, described t is the tooth pitch between adjacent cutter tooth,
(empirical equation), in formula, lo is the broaching length of workpiece of being broached.
The present invention has following beneficial effect:
1, test shows, in the time high temperature alloy or titanium alloy workpiece being carried out to thick fluting broaching, compared with existing thick fluting broaching tool, the structural strength of thick fluting broaching tool of the present invention obviously improves, volume bits successful improves, smear metal is tightr, smaller volume, and smear metal is difficult for rubbing with the machined surface of workpiece to be machined.
2, use thick fluting broaching tool of the present invention, the roughing surplus that can excise fast high temperature alloy or titanium alloy workpiece, compared with existing thick fluting broaching tool, can improve work efficiency.
3, because the structural strength of thick fluting broaching tool of the present invention improves, therefore, for processing high temperature alloy or titanium alloy workpiece, can increase the service life.
Brief description of the drawings
Fig. 1 is the structural representation of the thick fluting broaching tool used of processing high temperature alloy of the present invention and titanium alloy workpiece;
Fig. 2 is the structural representation of chip pocket in Fig. 1.
In figure, 1-cutter hub, 2-chip pocket, 3-handle of a knife, 4-back of tooth, 5-rake face, 6-volume bits platform, 7-land, 8-bottom land cambered surface, 9-transition cambered surface, t-tooth pitch, ω-volume bits corner of table, β-groove angle, h-capacity chip slot depth, g-back of tooth length, the radius of R2-bottom land cambered surface, h1-rake face degree of depth, γ-anterior angle, ɑ-relief angle in figure.
Detailed description of the invention
Below by embodiment and the structure of the thick fluting broaching tool of by reference to the accompanying drawings processing high temperature alloy of the present invention and titanium alloy workpiece being used be described further.
Embodiment 1
Described in the present embodiment, thick fluting broaching tool is used for processing high-temperature alloy turbine disc, and broaching length l o is 39mm.Described in the present embodiment, the structure of thick fluting broaching tool as shown in Figure 1, is made up of handle of a knife 3 and cutter hub 1, and the each knife-tooth structure arranging on described cutter hub is identical, forms by the back of tooth 4 and chip pocket 2, and the tooth pitch t between adjacent cutter tooth is equal, described in
, after calculating, be defined as 8mm, the length g=0.3 t=2.4 mm of the described back of tooth 4, the described back of tooth 4 is relief angle α with the angle of horizontal plane, relief angle α=4o.
Described in the present embodiment, in thick fluting broaching tool, the chip pocket 2 of each cutter tooth as shown in Figure 2, joins and forms successively by land 7, bottom land cambered surface 8, volume bits platform 6, transition cambered surface 9 and rake face 5; Described land 7 is inclined-plane, and one end of land 7 and the back of tooth of this cutter tooth 4 join, and the other end of land 7 and bottom land cambered surface 8 are joined, and land 7 is groove angle β with the angle of horizontal plane, groove angle β=60o; Described rake face 5 is inclined-plane, and one end of rake face 5 and the back of tooth of next cutter tooth 4 join, and the other end of rake face 5 and transition cambered surface 9 are joined, the degree of depth h1=0.25 h of rake face 5, described h is capacity chip slot depth, and rake face 5 is anterior angle γ with the angle of vertical guide, anterior angle γ=18o; Described volume bits platform 6 is inclined-plane, and volume bits platform 6 is volume bits corner of table ω with the angle of vertical guide, volume bits corners of table (ω)=30o; The radius R 2=0.35 h of described bottom land cambered surface 8, described h is capacity chip slot depth; The radius R 1=0.1 h of described transition cambered surface 9, described h is capacity chip slot depth.
In the present embodiment, h=0.35 t=2.8mm, therefore, and the degree of depth h1=0.25 h=0.7mm of rake face 5, the radius R 2=0.35 h of bottom land cambered surface 8, is defined as 1mm after calculating, and the radius R 1=0.1 h of transition cambered surface 9, is defined as 0.3mm after calculating.
Embodiment 2
Described in the present embodiment, thick fluting broaching tool is for machining titanium alloy compressor disc, and broaching length l o is 155 mm.Described in the present embodiment, the structure of thick fluting broaching tool as shown in Figure 1, is made up of handle of a knife 3 and cutter hub 1, and the each knife-tooth structure arranging on described cutter hub is identical, forms by the back of tooth 4 and chip pocket 2, and the tooth pitch t between adjacent cutter tooth is equal, described in
, after calculating, being defined as 19mm, the length g=0.35 t of the described back of tooth 4, is defined as 6.6 mm after calculating, and the described back of tooth 4 is relief angle α with the angle of horizontal plane, relief angle α=6o.
Described in the present embodiment, in thick fluting broaching tool, the chip pocket 2 of each cutter tooth as shown in Figure 2, joins and forms successively by land 7, bottom land cambered surface 8, volume bits platform 6, transition cambered surface 9 and rake face 5; Described land 7 is inclined-plane, and one end of land 7 and the back of tooth of this cutter tooth 4 join, and the other end of land 7 and bottom land cambered surface 8 are joined, and land 7 is groove angle β with the angle of horizontal plane, groove angle β=60o; Described rake face 5 is inclined-plane, and one end of rake face 5 and the back of tooth of next cutter tooth 4 join, and the other end of rake face 5 and transition cambered surface 9 are joined, the degree of depth h1=0.3 h of rake face 5, described h is capacity chip slot depth, and rake face 5 is anterior angle γ with the angle of vertical guide, anterior angle γ=10o; Described volume bits platform 6 is inclined-plane, and volume bits platform 6 is volume bits corner of table ω with the angle of vertical guide, volume bits corner of table ω=30o; The radius R 2=0.4 h of described bottom land cambered surface 8, described h is capacity chip slot depth; The radius R 1=0.15 h of described transition cambered surface 9, described h is capacity chip slot depth.
In the present embodiment, h=0.45 t, is defined as 8.5 mm after calculating, therefore, the degree of depth h1=0.3 h of rake face 5, is defined as 2.5mm after calculating, radius R 2=0.4 h=3.4 mm of bottom land cambered surface 8, the radius R 1=0.15 h of transition cambered surface 9, is defined as 1.3mm after calculating.
Claims (3)
1. process the thick fluting broaching tool that high temperature alloy and titanium alloy workpiece are used for one kind, formed by handle of a knife (3) and cutter hub (1), the each knife-tooth structure arranging on described cutter hub is identical, by the back of tooth (4) and chip pocket (2) composition, tooth pitch (t) between adjacent cutter tooth equates, it is characterized in that the chip pocket (2) of each cutter tooth joins and forms successively by land (7), bottom land cambered surface (8), volume bits platforms (6), transition cambered surface (9) and rake face (5); Described land (7) is inclined-plane, and the back of tooth (4) of its one end and this cutter tooth joins, and its other end and bottom land cambered surface (8) are joined, and the angle of itself and horizontal plane is groove angle, groove angle (β)=60 °; Described rake face (5) is inclined-plane, and the back of tooth (4) of its one end and next cutter tooth joins, and its other end and transition cambered surface (9) are joined, and the angle of itself and vertical guide is anterior angle (γ); Described volume bits platforms (6) be inclined-plane, and it is volume bits corners of table (ω) with the angle of vertical guide, rolls up and considers corners of table (ω)=30 ° to be worth doing; The described back of tooth (4) is relief angle (α) with the angle of horizontal plane; In the time of processing high temperature alloy workpiece, the degree of depth h1=0.25h of rake face (5), anterior angle (γ)=18 °, the radius R 2=0.35h of bottom land cambered surface (8), the radius R 1=0.1h of transition cambered surface (9), relief angle (α)=4 °; In the time of machining titanium alloy workpiece, the degree of depth h1=0.3h of rake face (5), anterior angle (γ)=10 °, the radius R 2=0.4h of bottom land cambered surface (8), the radius R 1=0.15h of transition cambered surface (9), relief angle (α)=6 °; Above-mentioned h in various is capacity chip slot depth, and described capacity chip slot depth was that the horizontal plane of intersection of rake face (5) and the back of tooth (4) is to the distance between bottom land cambered surface (8) lowest part.
2. process according to claim 1 the thick fluting broaching tool that high temperature alloy and titanium alloy workpiece are used, it is characterized in that in the time of processing high temperature alloy workpiece, capacity chip slot depth h=0.35t, in the time of machining titanium alloy workpiece, capacity chip slot depth h=0.45t, described t is the tooth pitch between adjacent cutter tooth, in the time of processing high temperature alloy workpiece
in the time of machining titanium alloy workpiece,
in formula, lo is the broaching length of workpiece of being broached.
3. according to the thick fluting broaching tool of processing high temperature alloy and titanium alloy workpiece described in claim 1 or 2 and using, it is characterized in that in the time of processing high temperature alloy workpiece, the length g=0.3t of the described back of tooth (4), in the time of machining titanium alloy workpiece, the length g=0.35t of the described back of tooth (4), described t is the tooth pitch between adjacent cutter tooth, in the time of processing high temperature alloy workpiece
in the time of machining titanium alloy workpiece,
in formula, lo is the broaching length of workpiece of being broached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210495411.3A CN102962515B (en) | 2012-11-28 | 2012-11-28 | Rough slotting broach for processing high-temperature alloy and titanium alloy workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210495411.3A CN102962515B (en) | 2012-11-28 | 2012-11-28 | Rough slotting broach for processing high-temperature alloy and titanium alloy workpieces |
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| CN102962515A CN102962515A (en) | 2013-03-13 |
| CN102962515B true CN102962515B (en) | 2014-12-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774045A (en) * | 2009-09-28 | 2010-07-14 | 沈阳黎明航空发动机(集团)有限责任公司 | Turbine disk fir-shaped mortise broaching tool |
| CN102717149A (en) * | 2012-06-01 | 2012-10-10 | 上海交通大学 | Adjustable finishing broach of wheel disc and tenon slot combination surface |
| CN202984803U (en) * | 2012-11-28 | 2013-06-12 | 成都发动机（集团）有限公司 | Coarsely notching broach used for machining high temperature alloy and titanium alloy workpieces |
-
2012
- 2012-11-28 CN CN201210495411.3A patent/CN102962515B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774045A (en) * | 2009-09-28 | 2010-07-14 | 沈阳黎明航空发动机(集团)有限责任公司 | Turbine disk fir-shaped mortise broaching tool |
| CN102717149A (en) * | 2012-06-01 | 2012-10-10 | 上海交通大学 | Adjustable finishing broach of wheel disc and tenon slot combination surface |
| CN202984803U (en) * | 2012-11-28 | 2013-06-12 | 成都发动机（集团）有限公司 | Coarsely notching broach used for machining high temperature alloy and titanium alloy workpieces |
Non-Patent Citations (4)
| Title |
|---|
| TC11钛合金压气机盘的切削加工;唐秀梅;《航空工艺技术》;19920228(第01期);第25-27页 * |
| 唐秀梅.TC11钛合金压气机盘的切削加工.《航空工艺技术》.1992,(第01期),第25-27页. * |
| 庞丽君.新型发动机用高温合金拉削加工硬化研究.《现代制造工程》.2008,(第04期),93-94，99. * |
| 新型发动机用高温合金拉削加工硬化研究;庞丽君;《现代制造工程》;20080430(第04期);第93-94，99页 * |
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