CN204108415U - A kind of fluted drill being used for machining titanium alloy - Google Patents

A kind of fluted drill being used for machining titanium alloy Download PDF

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Publication number
CN204108415U
CN204108415U CN201420482265.5U CN201420482265U CN204108415U CN 204108415 U CN204108415 U CN 204108415U CN 201420482265 U CN201420482265 U CN 201420482265U CN 204108415 U CN204108415 U CN 204108415U
Authority
CN
China
Prior art keywords
spiral bit
fluted drill
knife
handle
titanium alloy
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
CN201420482265.5U
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Chinese (zh)
Inventor
于胜平
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.)
HARBIN DONG'AN LIFENG CUTTER CO Ltd
Original Assignee
HARBIN DONG'AN LIFENG CUTTER 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 HARBIN DONG'AN LIFENG CUTTER CO Ltd filed Critical HARBIN DONG'AN LIFENG CUTTER CO Ltd
Priority to CN201420482265.5U priority Critical patent/CN204108415U/en
Application granted granted Critical
Publication of CN204108415U publication Critical patent/CN204108415U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of fluted drill being used for machining titanium alloy, relate to fluted drill structure, be specifically related to a kind of fluted drill in order to machining titanium alloy.Comprise spiral bit (2) and handle of a knife (3), spiral bit (2) and handle of a knife (3) are structure as a whole; The welding edges of spiral bit (2) and handle of a knife (3) together and central shaft coincide; The end of spiral bit (2) is conical chip head (1).The utility model solves the problems such as the fluted drill working (machining) efficiency existed in prior art is low, quick abrasion.

Description

A kind of fluted drill being used for machining titanium alloy
Technical field
The utility model relates to fluted drill structure, is specifically related to a kind of fluted drill in order to machining titanium alloy.
Background technology
Fluted drill is with the instrument of the circular hole of drilling workpiece by the rotary cutting of its relative fixed axis.Be similar to fried dough twist because of its chip pocket curl and gain the name.Helicla flute has 2 grooves, 3 grooves or more groove, but the most common with 2 grooves.Fluted drill can be clamped on manual, electronic Handheld drill instrument or drilling machine, milling machine, lathe and even machining center and use.Drill bit material is generally high-speed tool steel or carbide alloy.
Along with the extensive use of titanium alloy, titanium alloy has heat conduction, temperature diffusivity is little, and chip temperature is high, and chip deformation coefficient is little, and the cutting force in unit are is large.Due to shortcomings such as above characteristic cause in process, and tool sharpening efficiency is low, and tool wear is fast.
Summary of the invention
The utility model provides a kind of fluted drill being used for machining titanium alloy, solves the problems such as the fluted drill working (machining) efficiency existed in prior art is low, quick abrasion.
For solving the problem, the utility model adopts following technical scheme: a kind of fluted drill being used for machining titanium alloy, and comprise spiral bit 2 and handle of a knife 3, spiral bit 2 and handle of a knife 3 are structure as a whole; Spiral bit 2 together with the welding edges of handle of a knife 3 and central shaft coincide; The end of spiral bit 2 is conical chip 1.
The helical angle size of spiral bit 2 is 20-24 degree; The conical cone angle of chip 1 is 138-142 degree; Preferably, the helical angle size of spiral bit 2 is 21-23 degree; The conical cone angle of chip 1 is 139-141 degree.
Between the edge, junction of spiral bit 2 and handle of a knife 3 and the central shaft of spiral bit 2, angle is 28-32 degree; Preferably, between the edge, junction of spiral bit 2 and handle of a knife 3 and the central shaft of spiral bit 2, angle is 29-31 degree.
The outermost diameter of spiral bit 2 is 1.6-1.7 millimeter; Preferably, the outermost diameter of spiral bit 2 is 1.62-1.68 millimeter.
Advantage of the present utility model: the utility model selects the best angle of fluted drill by lot of experimental data, solves the difficult processing problems of titanium alloy small diameter drill bit, adds the working (machining) efficiency of fluted drill; The utility model utilizes numerical control tool grinder and special type emery wheel to process the drill bit of applicable machining titanium alloy, decreases the wearing and tearing to fluted drill.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is chip head left view in Fig. 1.
Symbol description in figure: 1 for chip head, 2 be spiral bit, 3 be handle of a knife.
Detailed description of the invention
By best embodiment, the utility model is described in detail below .
As shown in Figure 1, a kind of fluted drill being used for machining titanium alloy, comprise spiral bit 2 and handle of a knife 3, spiral bit 2 and handle of a knife 3 are structure as a whole; Spiral bit 2 together with the welding edges of handle of a knife 3 and central shaft coincide; The end of spiral bit 2 is conical chip 1.
Fluted drill of the present utility model adopts high-speed steel to be material, and high-speed steel is a kind of tool steel with high rigidity, high-wearing feature and high-fire resistance, also known as high-speed tool steel or high-speed steel, is commonly called as Bai Gang.The processing performance of high-speed steel is good, and intensity and toughness are worked good, and is therefore mainly used to manufacture complicated thin sword and impact-resistant metal cutting tool, also can manufacture high-temperature bearing and cold extrusion die etc.Except the high-speed steel produced with method of smelting, there is again PM HSS in the sixties in 20th century later, and its advantage is that of avoiding smelting process and produces the carbide segregation that causes and cause mechanical performance to reduce and heat treatment deformation.Adopt carbide alloy effectively to prevent fluted drill to be damaged, and improve its service life.
The utility model is transformed existing fluted drill, through being experimental implementation in a large number, draws following parameter:
The helical angle size of spiral bit 2 is 20-24 degree; The conical cone angle of chip 1 is 138-142 degree; The scheme that optimum is chosen is, the helical angle size of spiral bit 2 is 22 degree; The conical cone angle of chip 1 is 140 degree.
Between the edge, junction of spiral bit 2 and handle of a knife 3 and the central shaft of spiral bit 2, angle is 28-32 degree; The scheme that optimum is chosen is, between the edge, junction of spiral bit 2 and handle of a knife 3 and the central shaft of spiral bit 2, angle is 30 degree.
The outermost diameter of spiral bit 2 is 1.6-1.7 millimeter; The scheme that optimum is chosen is, the outermost diameter of spiral bit 2 is 1.65 millimeters.
Titanium alloy has heat conduction, temperature diffusivity is little, and chip temperature is high, and chip deformation coefficient is little, and the cutting force in unit are is large, is unfavorable for cutting.Adopt the fluted drill that above-mentioned geometric parameter improves, effectively add cutting ability, increase work efficiency, solve high-speed steel tool in the short-life problem of machining titanium alloy material, and by optimizing chip performance during cutter parameters raising carbide drill machining titanium alloy material.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.

Claims (1)

1. be used for the fluted drill of machining titanium alloy, it is characterized in that, comprise spiral bit (2) and handle of a knife (3), spiral bit (2) and handle of a knife (3) are structure as a whole; The welding edges of spiral bit (2) and handle of a knife (3) together and central shaft coincide; The end of spiral bit (2) is conical chip head (1);
The helical angle size of spiral bit (2) is 21-23 degree; The conical cone angle of chip head (1) is 139-141 degree;
Between the edge, junction of spiral bit (2) and handle of a knife (3) and the central shaft of spiral bit (2), angle is 29-31 degree;
The outermost diameter of spiral bit (2) is 1.62-1.68 millimeter.
CN201420482265.5U 2014-08-26 2014-08-26 A kind of fluted drill being used for machining titanium alloy Expired - Fee Related CN204108415U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420482265.5U CN204108415U (en) 2014-08-26 2014-08-26 A kind of fluted drill being used for machining titanium alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420482265.5U CN204108415U (en) 2014-08-26 2014-08-26 A kind of fluted drill being used for machining titanium alloy

Publications (1)

Publication Number Publication Date
CN204108415U true CN204108415U (en) 2015-01-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420482265.5U Expired - Fee Related CN204108415U (en) 2014-08-26 2014-08-26 A kind of fluted drill being used for machining titanium alloy

Country Status (1)

Country Link
CN (1) CN204108415U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107186333A (en) * 2017-07-24 2017-09-22 江苏飞达钻头股份有限公司 A kind of molten assembly method of assembly type hexagonal-handle twist drill ultrasonic wave rotation
WO2019047251A1 (en) * 2017-09-07 2019-03-14 深圳市鑫国钰精密工具有限公司 Drill bit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107186333A (en) * 2017-07-24 2017-09-22 江苏飞达钻头股份有限公司 A kind of molten assembly method of assembly type hexagonal-handle twist drill ultrasonic wave rotation
WO2019047251A1 (en) * 2017-09-07 2019-03-14 深圳市鑫国钰精密工具有限公司 Drill bit

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150121

Termination date: 20170826

CF01 Termination of patent right due to non-payment of annual fee