CN108118331A - A kind of manufacturing method of screwdriver bit and screwdriver bit - Google Patents
A kind of manufacturing method of screwdriver bit and screwdriver bit Download PDFInfo
- Publication number
- CN108118331A CN108118331A CN201611081045.1A CN201611081045A CN108118331A CN 108118331 A CN108118331 A CN 108118331A CN 201611081045 A CN201611081045 A CN 201611081045A CN 108118331 A CN108118331 A CN 108118331A
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- Prior art keywords
- screwdriver bit
- alloying
- head
- laser
- screwdriver
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 238000005275 alloying Methods 0.000 claims abstract description 139
- 238000000576 coating method Methods 0.000 claims abstract description 42
- 239000011248 coating agent Substances 0.000 claims abstract description 38
- 239000011159 matrix material Substances 0.000 claims abstract description 38
- 239000007769 metal material Substances 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 14
- 229910001315 Tool steel Inorganic materials 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 229910001069 Ti alloy Inorganic materials 0.000 claims 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 42
- 238000010276 construction Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/001—Screwdrivers characterised by material or shape of the tool bit
- B25B15/002—Screwdrivers characterised by material or shape of the tool bit characterised by material used or surface finishing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of manufacturing method of screwdriver bit, which includes the head for being inserted into the line of rabbet joint of screw terminal and the matrix for being used to support the head；The manufacturing method includes providing the screwdriver bit made of the first metal material；Prepare surface alloying coating；Surface coating alloy coating on the head of screwdriver bit；The surface on the head to being coated with surface alloying coating carries out surface laser Alloying Treatment and forms alloying layer；Lonneal processing is carried out to the screwdriver bit for completing surface laser Alloying Treatment.The invention also discloses a kind of screwdriver bit, the surface at the position of the head of screwdriver bit and the line of rabbet joint contact of screw terminal has the alloying layer formed by surface laser Alloying Treatment.Screwdriver bit made of manufacturing method using the present invention has both the high rigidity, high-wearing feature and the high tenacity at other positions on head, so as to improve service life.
Description
Technical field
The present invention relates to a kind of screwdriver bit, it is more particularly to a kind of by surface laser Alloying Treatment in screwdriver bit
The surface on head forms alloying layer, realizes that screwdriver bit has both the high rigidity, high-wearing feature and the high-ductility at other positions on head
Property.The invention further relates to the manufacturing methods of this screwdriver bit.
Background technology
Screwdriver is the instrument for tightening or unscrewing screw.According to the pattern and construction of screwdriver, one can be divided into
The handle and screwdriver bit that the normal screws of body formula batch and combined screwdriver, wherein normal screws are criticized are combined together and can not
Separation；The handle of combined screwdriver can be combined or separated with screwdriver bit.Screwdriver bit has to be inserted into
The head of the line of rabbet joint of screw terminal and the matrix for being used to support the head, the shape on the head of general common screwdriver bit include：
Linear type, cross, star, M shape, square and hexagon.
Based on difference functionally, the architectural characteristic of the head of screwdriver bit and matrix needs simultaneously differs, in order to overcome
The torsion generated during screw is tightened, the matrix of screwdriver bit needs enough toughness, the head of the line of rabbet joint for being inserted into screw terminal
It is then to need high rigidity and high-wearing feature.Conventional screwdriver bit is made of integral material, in other words, the head of screwdriver bit
Portion and matrix are the form into needs using single material manufacture, then carry out heat treatment process through to whole, so as to manufacture
Complete conventional screwdriver bit.For the screwdriver bit to be completed using integral material, the height on the head of screwdriver bit
The requirement of hardness and high-wearing feature and the high tenacity requirement at other positions can not usually get both.
Therefore, for the producer and developer of screwdriver bit, the high rigidity and high-wearing feature on head how to be had both
Requirement and other positions high tenacity requirement, be one of target that the producer of screwdriver bit and developer are continually striving to.
The content of the invention
The technical problems to be solved by the invention be to provide a kind of requirement for the high rigidity and high-wearing feature for having both head and
The high tenacity requirement at other positions, and the manufacturing method of the screwdriver bit of service life length and the screwdriver bit.
To solve the technical issues of above-mentioned, the present invention proposes a kind of manufacturing method of screwdriver bit, the manufacturing method bag
It includes：
The screwdriver bit made of the first metal material is provided, wherein screwdriver bit includes the line of rabbet joint for being inserted into screw terminal
Head and be used to support the matrix on the head；
Prepare surface alloying coating；
The coating surface alloying coating on the surface on the head of screwdriver bit；
Surface laser Alloying Treatment is carried out to the surface on the head for the screwdriver bit for being coated with surface alloying coating, in screw
The surface on the head of screwdriver bit forms alloying layer；And
Lonneal processing is carried out to the screwdriver bit for completing surface laser Alloying Treatment.
Further, first metal material includes：Spring steel, structural alloy steel and tool steel are therein any.
Further, surface alloying coating contains the alloying elements such as substantial amounts of W, Mo, Ti, V, Al, in the head to screwdriver bit
During the surface in portion carries out surface laser Alloying Treatment, laser beam will contain the alloying elements such as W, Mo, Ti, V, Al first
The head surface layer melting of the screwdriver bit of surface alloying coating and these close coating, surface alloying coating and alloying element therein melt
Enter the head surface layer of screwdriver bit, form alloying layer, is i.e. alloying element in alloying layer comes from surface alloying coating
Alloying element.
As being further improved for the manufacturing method of the present invention, surface alloying coating be coated on the screwdriver bit head and
The surface at the position of the line of rabbet joint contact of the screw terminal.
Further, surface alloying coating contains mass percent and is：5~20 C, 2~18 B, 2~38 Si, 0.2~
6 N, 0.5~15 O, 0.3~6 Al, 2~10 Mo, 2~10 V, the Ti of 2~20 W and 2~20.
Preferably, surface alloying coating contains mass percent and is：5.5~17 C, 2.7~16.6 B, 2.3~29.6
Si, 0.22~4.9 N, 0.56~13.7 O, 0.33~5.6 Al, 2.7~9.8 Mo, 2.7~9.8 V, 2.7~
19.8 W and 2.7~19.8 Ti.
Further, carrying out the technological parameter of surface laser Alloying Treatment includes：Laser power is 200~3000 watts
(w), spot diameter is 0.2~3 millimeter (mm), the sweep speed of laser is 5~80 millimeters (mm/min) per minute, and alloying applies
The thickness of material is 0.05~1 millimeter (mm).
Preferably, carrying out the technological parameter of surface laser Alloying Treatment includes：Laser power for 280~2600 watts (w),
Spot diameter is 0.2~2.8 millimeter (mm), the sweep speed of laser is 5.5~75 millimeters (mm/min) per minute, and alloying applies
The thickness of material is 0.07~1 millimeter (mm).
Further, the wavelength for carrying out the laser that surface laser Alloying Treatment uses is not more than 10.6 microns (um),
And the power of laser is more than 2000 watts (w).
Preferably, the wavelength for the laser that surface laser Alloying Treatment uses is carried out no more than 1.06 microns (um), and
The power of laser is more than 2000 watts (w).
Further, lonneal processing includes the screwdriver bit for completing surface laser Alloying Treatment being heated to 160
~180 DEG C and keep the temperature 1 it is small when.
Preferably, lonneal processing includes that using the low-temp temper furnace with gas circulation surface laser alloying will be completed
The screwdriver bit of processing is heated to 180 DEG C, and keep the temperature 1 it is small when.Low-temp temper furnace is enabled to by gas circulation in tempering furnace
Temperature Distribution it is more uniform.
Another aspect of the present invention includes a kind of screwdriver bit, which is made of the first metal material, the screw
Screwdriver bit includes at least：For the matrix for being inserted into the head of the line of rabbet joint of screw terminal He being used to support the head, the head is formed at
The alloying layer on the surface in portion；
Alloying layer is at least to contain C, B, Si, N, O, Al, Mo, V, W, Ti alloying element by being coated on the surface on the head
In one or more surface alloying coatings formed by surface laser Alloying Treatment；
Alloying layer has the cryptocrystalline martensite tissue of tiny crystals particle size, and the alloying layer there is no partially
The defects of analysis, micro-crack, stomata and slag inclusion.
A kind of preferred structure of screwdriver bit as the present invention, the alloying layer are formed at the head and the spiral shell
The position of the line of rabbet joint contact of silk head.
Further, first metal material includes：Spring steel, structural alloy steel and tool steel are therein any.
Further, the depth of the alloying layer is not less than 0.05 millimeter (mm).
Further, the hardness of the alloying layer improves more than 2HRC than the hardness of described matrix.
Further, there is heat affected area, the width of the heat affected area between the alloying layer and described matrix
No more than 1.0 millimeters (mm)
Further, the hardness of the heat affected area is reduced than the hardness of described matrix, and the amplitude that the hardness reduces is not
More than 8HRC.
Another aspect of the present invention includes a kind of screwdriver, and the screwdriver includes the manufacturing method by above-mentioned screwdriver bit
The screwdriver bit of manufacture or above-mentioned screwdriver bit and handle, the handle with the screwdriver bit connecting.
Further, the handle of above-mentioned screwdriver and the screwdriver bit are combined together and inseparable.
Further, the handle of above-mentioned screwdriver has combination bore, and the matrix of the screwdriver bit may be inserted into the combination
Hole or extract the combination bore out.
Further, above-mentioned screwdriver bit includes for being inserted into the shape on the head of the line of rabbet joint of screw terminal：Linear type, cross
Shape, star, M shape, square and hexagon are therein any.
The screwdriver bit that the manufacturing method of screwdriver bit proposed by the present invention and application manufacturing method manufacture are completed, leads to
The surfaction technique of surface laser Alloying Treatment is crossed, alloying layer is formed on the head of screwdriver bit, has both the height on head
The requirement of hardness and high-wearing feature and the high tenacity requirement at other positions, so that the manufacture of screwdriver bit proposed by the present invention
The screwdriver bit that method manufacture is completed is long with longer service life.
The alloying layer of screwdriver bit proposed by the present invention be by be coated on the surface on head at least containing C, B, Si, N, O,
One or more surface alloying coatings in Al, Mo, V, W, Ti alloying element are formed by surface laser Alloying Treatment, should
Alloying layer has the cryptocrystalline martensite tissue of tiny crystals particle size, further promotes the wearability on head.With not over
The conventional screwdriver bit of the manufacturing method manufacture of screwdriver bit proposed by the present invention is compared, using screwdriver bit proposed by the present invention
Manufacturing method manufacture screwdriver bit on deal board actually to twist 3.5x50mm by hand, after 500 tapping screws, this hair
The head front of bright screwdriver bit, side do not have noticeable wear, hence it is evident that improve the service life of screwdriver bit.
Technical concept, the specific embodiment of the present invention are described in further detail below in conjunction with attached drawing.
Description of the drawings
Figure 1A is a kind of structural map of embodiment of the screwdriver bit of the present invention, and it is criss-cross screw to show a kind of head
The construction of screwdriver bit and the position of surface laser Alloying Treatment；
Figure 1B is the right side view of the embodiment construction of Figure 1A；
Fig. 2A is the structural map of another embodiment of the screwdriver bit of the present invention, shows the spiral shell that a kind of head is linear type
The silk construction of screwdriver bit and the position of surface laser Alloying Treatment；
Fig. 2 B are the top views of the embodiment construction of Fig. 2A；
Fig. 3 A are the structural maps of another embodiment of the screwdriver bit of the present invention, and it is star-shaped screw to show a kind of head
The construction of screwdriver bit and the position of surface laser Alloying Treatment；
Fig. 3 B are the right side views of the embodiment construction of Fig. 3 A；
Fig. 4 A are the structural maps of the another embodiment of the screwdriver bit of the present invention, and it is square screw to show a kind of head
The construction of screwdriver bit and the position of surface laser Alloying Treatment；
Fig. 4 B are the right side views of the embodiment construction of Fig. 4 A；
Fig. 5 is the structural map of another embodiment of the screwdriver bit of the present invention, shows a kind of spiral shell with two heads
The construction of silk screwdriver bit；
Fig. 6 is a kind of metallograph of embodiment construction of the screwdriver bit of the present invention, shows alloying layer, matrix and conjunction
Metallographic structure between aurification layer and matrix；
Fig. 7 is a kind of structural map of embodiment of the screwdriver of the present invention；
Fig. 8 is the structural map of another embodiment of the screwdriver of the present invention.
【Symbol description】
10 heads
20 matrixes
30 alloying layers
40 heat affected areas
50 handles
51 combination bores
S screwdriver bits
Specific embodiment
Screwdriver bit proposed by the present invention belongs to a component of screwdriver, and the main effect of screwdriver bit is directly
It is contacted with the screw terminal of screw, screw to be driven to rotate.Pattern according to screwdriver can divide into the common spiral shell of integral type
Silk batch and combined screwdriver, normal screws batch and combined screwdriver are respectively provided with handle；Wherein the handle of normal screws batch and
Screwdriver bit is combined together and inseparable；The handle of combined screwdriver can be combined or divided with screwdriver bit
From.
Figure 1A and Figure 1B shows that a kind of embodiment construction of screwdriver bit proposed by the present invention includes：For being inserted into screw
The head 10 of the line of rabbet joint of head, the alloying layer 30 for being used to support the matrix 20 on head 10 and being formed at the surface on head 10.
Matrix 20 can connect the composition screwdriver with handle, and matrix 20 is used to support head 10, and is tightening
Or the twisting resistance of handle is transferred to head 10 when unscrewing screw；Matrix 20 is typically a kind of rod-shaped component, and must be expired
The requirement of sufficient high tenacity, the shape of the radial direction section of matrix 20 do not limit particularly, generally comprise circular and polygon (such as
Hexagon) it is therein any.
A kind of embodiment of screwdriver bit proposed by the present invention, wherein head 10 and matrix 20 are by the first metal material
It is made, in order to meet the requirement of high tenacity, the selection of the first metal material includes：Spring steel, structural alloy steel and tool steel are wherein
It is any, can be selected from and include but not limited to the following trade mark：Spring steel, the S2 (U.S.'s trade mark) of 50CrV (the Chinese trade mark)
Alloy tool steel, the alloy tool steel of 9SiCr (the Chinese trade mark) and the structural alloy steel etc. of 40Cr (the Chinese trade mark).This
A kind of embodiment of the screwdriver bit proposed is invented, including the screwdriver bit of head 10 and matrix 20 using conventional screwdriver bit
Manufacturing process manufacture, including：The manufacturing process that blanking, mechanical processing, bulk heat treatmet, electroplating surface and head 10 black.
As shown in FIG. 1A and 1B, a kind of preferred embodiment construction of screwdriver bit proposed by the present invention includes：At least
Head 10 described in one, the alloying layer 30 for being used to support the matrix 20 on head and being formed at the surface on head 10, head 10
Position is in wherein one end of matrix 20.Further, it is familiar with the personnel of technical field, is understanding the invention described above screw
The preferred embodiment construction of screwdriver bit, should will be seen that screwdriver bit of the present invention can also be a kind of double-threaded screw screwdriver bit, such as Fig. 5
Shown, another embodiment construction of screwdriver bit proposed by the present invention includes：Head 10 described in two is used to support head
10 matrix 20 and be respectively formed in two heads 10 surface alloying layer 30, the head 10 described in two is distinguished
At the both ends of matrix 20, this screwdriver bit with two heads 10 is normally used as the screw of aforementioned combinatorial type screwdriver for position
Screwdriver bit can penetrate and combine screwdriver bit and handle and the mode together with recombinant be reversed end for end after separation, play tune
Change the effect on two heads.
The shape of the line of rabbet joint according to screw terminal, screwdriver bit proposed by the present invention are used to be inserted into the head of the line of rabbet joint of screw terminal
10 shape includes：Cross, linear type, star, M shape, square and hexagon are therein any.It is above-mentioned in the present invention
For tool there are two the embodiment on the head 10, the shape on two heads 10 can be identical shape or different shapes
Shape.
A kind of preferred structure of screwdriver bit as the present invention, the alloying layer 30 are formed at head 30 and screw terminal
The line of rabbet joint contact position.If Figure 1A and Figure 1B embodiment shown are that a kind of shape on head 10 is criss-cross screwdriver
Head, wherein alloying layer 30 are formed at position P1 depicted in Figure 1A and Figure 1B.As Fig. 2A and Fig. 2 B embodiments shown are
A kind of shape on head 10 is the screwdriver bit of linear type, and wherein alloying layer 30 is formed at portion depicted in Fig. 2A and Fig. 2 B
Position P2.If Fig. 3 A and Fig. 3 the B embodiments shown are that a kind of shape on head 10 is star-shaped screwdriver bit, wherein alloying layer
30 are formed at position P3 depicted in Fig. 3 A and Fig. 3 B.If Fig. 4 A and Fig. 4 the B embodiments shown are a kind of shapes on head 10
It is square screwdriver bit, wherein alloying layer 30 is formed at position P4 depicted in Fig. 4 A and Fig. 4 B.
Alloying layer 30 is at least to contain B, Si, N, O, Al, Mo, V, W, Ti alloying element by being coated on the surface on head 10
In one or more surface alloying coatings formed by surface laser Alloying Treatment；The depth of alloying layer 30 is (along table
The normal to a surface direction at the position of the contact of face Laser Alloying Treatment, the distance to extend internally from surface) it is not less than
0.05 millimeter (mm).
According to the embodiment construction of the above-mentioned screwdriver bit of the present invention, it is made using the first metal material comprising head 10 and base
Body 20, and the screwdriver bit after alloying layer 30 is being formed by surface laser Alloying Treatment, as shown in fig. 6, observation
The structure of the alloying layer 30, alloying layer 30 have the cryptocrystalline martensite tissue of tiny crystals particle size, alloying layer
30 the defects of there is no segregation, micro-crack, stomata and slag inclusion, the hardness of alloying layer 30 are improved than the hardness of matrix 20
More than 2HRC.Structure between observation alloying layer 30, matrix 20 and alloying layer 30 and matrix 20 is (such as Fig. 6 institutes
Show), there is heat affected area 40 between alloying layer 30 and matrix 20, the width of the heat affected area 40 is not more than 1.0 millimeters
(mm), the hardness of heat affected area 40 is reduced than the hardness of normal matrix 20, and the amplitude that the hardness reduces is not more than 8HRC.Cause
This, by the surfaction technique of surface laser Alloying Treatment, forms alloying layer 30 on the head of screwdriver bit 10, has both
The requirement of the high rigidity and high-wearing feature on head 10 and the high tenacity requirement at other positions, so that screw proposed by the present invention
Screwdriver bit is long with longer service life.
Another aspect of the present invention provides a kind of manufacturing method such as above-mentioned screwdriver bit, in a specific embodiment
In, which comprises the following steps：
There is provided includes matrix 10 and the screwdriver bit on head 20 made of the first metal material；
Prepare surface alloying coating；
The coating surface alloying coating on the surface on the head of the screwdriver bit 10；
The surface on the head 10 to being coated with the surface alloying coating carries out surface laser Alloying Treatment, on head 10
Surface forms alloying layer 30；And
Lonneal processing is carried out to the screwdriver bit for completing surface laser Alloying Treatment.
In a preferred embodiment of the above-mentioned manufacturing method of the present invention, surface alloying coating is to be coated on screwdriver bit
Head 10 and screw terminal the line of rabbet joint contact position surface, according to head 10 several different shapes, the contact
Position may be referred to Figure 1A~Fig. 4 B, if Figure 1A and Figure 1B embodiment shown are that a kind of shape on head 10 is criss-cross spiral shell
Silk screwdriver bit, wherein alloying layer 30 are formed at position P1 depicted in Figure 1A and Figure 1B.The implementation shown such as Fig. 2A and Fig. 2 B
Example is the screwdriver bit that a kind of shape on head 10 is linear type, and wherein alloying layer 30 is formed in Fig. 2A and Fig. 2 B depicted
Position P2.If Fig. 3 A and Fig. 3 the B embodiments shown are that a kind of shape on head 10 is star-shaped screwdriver bit, wherein alloy
Change layer 30 and be formed at position P3 depicted in Fig. 3 A and Fig. 3 B.If Fig. 4 A and Fig. 4 the B embodiments shown are a kind of heads 10
Shape is square screwdriver bit, and wherein alloying layer 30 is formed at position P4 depicted in Fig. 4 A and Fig. 4 B.
A kind of embodiment of surface alloying coating contains mass percent and is：5~20 C, 2~18 B, 2~38 Si,
0.2~6 N, 0.5~15 O, 0.3~6 Al, 2~10 Mo, 2~10 V, the Ti of 2~20 W and 2~20 are (containing
State the alloy powder of element).Preferably, the surface alloying coating contains mass percent and is：5.5~17 C, 2.7~16.6
B, 2.3~29.6 Si, 0.22~4.9 N, 0.56~13.7 O, 0.33~5.6 Al, 2.7~9.8 Mo, 2.7~
The Ti of 9.8 V, 2.7~19.8 W and 2.7~19.8.
A kind of embodiment of the surface laser Alloying Treatment is carried out, including following technological parameter：Laser power
It is 0.2~3 millimeter (mm) for 200~3000 watts (w), spot diameter, the sweep speed of laser is 5~80 millimeter (mm/ per minute
Min), the thickness of the surface alloying coating is 0.05~1 millimeter (mm).Preferably technological parameter, wherein laser power for 280~
2600 watts (w), spot diameter are 0.2~2.8 millimeter (mm), the sweep speed of laser is 5.5~75 millimeter (mm/ per minute
Min), the thickness of the surface alloying coating is 0.07~1 millimeter (mm).
In an embodiment of the above-mentioned manufacturing method of the present invention, carry out the surface laser Alloying Treatment and use
Laser wavelength no more than 10.6 microns (um), and the power of the laser is more than 2000 watts (w).Preferably, laser
The wavelength of device is not more than 1.06 microns (um), and the power of the laser is more than 2000 watts (w).
In an embodiment of the above-mentioned manufacturing method of the present invention, lonneal processing includes that surface laser will be completed
When the screwdriver bit of Alloying Treatment is heated to 160~180 DEG C and small heat preservation 1.In preferred embodiment, followed using band gas
The screwdriver bit for completing surface laser Alloying Treatment is heated to 180 DEG C by the low-temp temper furnace of ring, and keep the temperature 1 it is small when.
As the embodiment of a comparison, the sample that the screwdriver bit of specification PH2/S2 has been selected to test as a comparison leads to
It crosses and is carried out using the actual performance carried out the step of above-mentioned manufacturing method of the invention to head 10 before and after alloying is surface-treated
Following test.
【Compare sample 1】
Comparison sample 1 is not carry out surface alloying processing to head 10 using the step of above-mentioned manufacturing method of the invention
PH2/S2 screwdriver bars, it is positive under projecting apparatus after comparison sample 1 twists the tapping screw 500 of 3.5*50mm on deal board
Observation 10 profile of head is more rounded, represents that the surface on head 10 has worn away, the blade corner angle working portion on head 10 is observed in side
There is apparent abrasion.
【Compare sample 2】
Comparison sample 2 is to carry out surface alloying processing to head 10 using the step of above-mentioned manufacturing method of the invention
PH2/S2 screwdriver bars, after comparison sample 2 twists the tapping screw 500 of 3.5*50mm on deal board, front is seen under projecting apparatus
Head 10 is examined without noticeable wear, the blade corner angle on side observation head 10 are apparent, no abrasion.
Another aspect of the present invention includes a kind of screwdriver, and a kind of embodiment for screwdriver that Fig. 7 is shown constructs, including：
Screwdriver bit S and handle 50, handle 50 with screwdriver bit S connecting；Wherein screwdriver bit S is by the invention described above manufacturer
The screwdriver bit or the embodiments of the present invention of method manufacture construct revealed screwdriver bit.
Screwdriver of the present invention a kind of embodiment construction, as shown in fig. 7, handle 50 and screwdriver bit S be combined together and
It is inseparable.
Fig. 8 shows another embodiment construction of screwdriver of the present invention, and the wherein handle 50 of screwdriver has combination bore 51,
The matrix 20 of screwdriver bit S may be inserted into combination bore 51 or extraction combination bore 51.Provide a kind of handle 50 can and screw
Screwdriver bit S is combined or separated combined screwdriver.
Several specific embodiments of the present invention are described in detail in above embodiment.It should be appreciated that skill belonging to the present invention
The personnel in art field are understanding above-mentioned technical concept of the invention, specific embodiment and effect, can be with skill according to the present invention
Many modifications and variations are made in art design.Therefore, above-mentioned technical concept according to the invention is led on the basis of existing technology
Logical analysis, reasoning, or a limited experiment are crossed so as to the technical solution obtained, should all be asked in claims of the present invention
In the protection domain asked.
Claims (20)
1. a kind of manufacturing method of screwdriver bit, which is characterized in that
Including：
The screwdriver bit made of the first metal material is provided；Wherein, the screwdriver bit includes the slot for being inserted into screw terminal
The head of seam and the matrix for being used to support the head；
Prepare surface alloying coating；
The coating surface alloying coating on the surface on the head of the screwdriver bit；
The surface on the head to being coated with the surface alloying coating carries out surface laser Alloying Treatment, on the head
Surface forms alloying layer；And
Lonneal processing is carried out to the screwdriver bit of the completion surface laser Alloying Treatment.
2. the manufacturing method of screwdriver bit as described in claim 1, which is characterized in that the surface alloying coating is coated on described
The surface at the position of the line of rabbet joint of the head of screwdriver bit and screw terminal contact.
3. the manufacturing method of screwdriver bit as described in claim 1, it is characterised in that：First metal material includes：Bullet
Spring steel, structural alloy steel and tool steel are therein any.
4. the manufacturing method of screwdriver bit as described in claim 1, which is characterized in that the surface alloying coating contains quality hundred
Point ratio is：5~20 C, 2~18 B, 2~38 Si, 0.2~6 N, 0.5~15 O, 0.3~6 Al, 2~10 Mo,
The Ti of 2~10 V, 2~20 W and 2~20.
5. the manufacturing method of screwdriver bit as claimed in claim 4, it is characterised in that：The surface alloying coating contains quality hundred
Point ratio is：5.5~17 C, 2.7~16.6 B, 2.3~29.6 Si, 0.22~4.9 N, 0.56~13.7 O, 0.33
~5.6 Al, 2.7~9.8 Mo, 2.7~9.8 V, the Ti of 2.7~19.8 W and 2.7~19.8.
6. the manufacturing method of screwdriver bit as described in claim 1, which is characterized in that carry out at the surface laser alloying
The technological parameter of reason includes：Laser power is 200~3000 watts, spot diameter is 0.2~3 millimeter, the sweep speed of laser is 5
~80 millimeters per minute, the thickness of the surface alloying coating is 0.05~1 millimeter.
7. the manufacturing method of screwdriver bit as claimed in claim 6, which is characterized in that carry out at the surface laser alloying
The technological parameter of reason includes：Laser power is 280~2600 watts, spot diameter is 0.2~2.8 millimeter, the sweep speed of laser
For 5.5~75 millimeters per minute, the thickness of the surface alloying coating is 0.07~1 millimeter.
8. the manufacturing method of screwdriver bit as described in claim 1, which is characterized in that carry out at the surface laser alloying
The wavelength of the laser used is managed no more than 10.6 microns, and the power of the laser is more than 2000 watts.
9. the manufacturing method of screwdriver bit as described in claim 1, which is characterized in that carry out at the surface laser alloying
The wavelength of the laser used is managed no more than 1.06 microns, and the power of the laser is more than 2000 watts.
10. the manufacturing method of screwdriver bit as described in claim 1, which is characterized in that the lonneal processing includes will
When the screwdriver bit of completion surface laser Alloying Treatment is heated to 160~180 DEG C and small heat preservation 1.
11. the manufacturing method of screwdriver bit as claimed in claim 10, which is characterized in that the lonneal processing includes adopting
The screwdriver bit for completing surface laser Alloying Treatment is heated to 180 DEG C with the low-temp temper furnace with gas circulation, and keeps the temperature 1
Hour.
12. a kind of manufacturing method of screwdriver bit, spy are,
The screwdriver bit includes：For the base for being inserted into an at least head for the line of rabbet joint of screw terminal He being used to support the head
Body；
The manufacturing method includes：
There is provided includes the screwdriver bit on described matrix and head made of the first metal material；The first metal material bag
It includes：Spring steel, structural alloy steel and tool steel are therein any；
Surface alloying coating is prepared, the surface alloying coating contains mass percent and is：5~20 C, 2~18 B, 2~38
Si, 0.2~6 N, 0.5~15 O, 0.3~6 Al, 2~10 Mo, 2~10 V, the Ti of 2~20 W and 2~20；
It is applied in the surface coating at the position of the line of rabbet joint of the head of the screwdriver bit and the screw terminal contact alloying
Material；
The position of the contact to being coated with the surface alloying coating carries out surface laser Alloying Treatment, in the position shape
Into alloying layer；And
Lonneal processing is carried out to the screwdriver bit of the completion surface laser Alloying Treatment.
13. a kind of screwdriver bit, which is characterized in that
The screwdriver bit includes at least：For being inserted into an at least head for the line of rabbet joint of screw terminal and being used to support the head
Matrix and be formed at the head surface alloying layer；
The head and the matrix are made of the first metal material；
The alloying layer is by being coated on the surface on the head at least containing C, B, Si, N, O, Al, Mo, V, W, Ti alloy member
One or more surface alloying coatings in element are formed by surface laser Alloying Treatment.
14. screwdriver bit as claimed in claim 13, which is characterized in that the alloying layer is formed at the head and described
The position of the line of rabbet joint contact of screw terminal.
15. screwdriver bit as claimed in claim 13, which is characterized in that the depth of the alloying layer is not less than 0.05 milli
Rice.
16. screwdriver bit as claimed in claim 13, which is characterized in that have between the alloying layer and described matrix
Heat affected area, the width of the heat affected area are not more than 1.0 millimeters.
17. screwdriver bit as claimed in claim 16, which is characterized in that the hardness of the heat affected area is harder than described matrix
Degree reduces, and the amplitude that the hardness reduces is not more than 8HRC.
18. a kind of screwdriver, which is characterized in that the screwdriver includes the spiral shell as described in any one in claim 1-12
The screwdriver bit or screwdriver bit as described in any one in claim 13-18 of the manufacturing method manufacture of silk screwdriver bit and
Handle, the handle with the screwdriver bit connecting.
19. screwdriver as claimed in claim 18, which is characterized in that the handle and the screwdriver bit be combined together and
It is inseparable.
20. screwdriver as claimed in claim 18, which is characterized in that the handle has combination bore, the screwdriver bit
Matrix may be inserted into the combination bore or the extraction combination bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081045.1A CN108118331A (en) | 2016-11-30 | 2016-11-30 | A kind of manufacturing method of screwdriver bit and screwdriver bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081045.1A CN108118331A (en) | 2016-11-30 | 2016-11-30 | A kind of manufacturing method of screwdriver bit and screwdriver bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108118331A true CN108118331A (en) | 2018-06-05 |
Family
ID=62226300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611081045.1A Pending CN108118331A (en) | 2016-11-30 | 2016-11-30 | A kind of manufacturing method of screwdriver bit and screwdriver bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108118331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548922A (en) * | 2019-09-25 | 2021-03-26 | 施耐宝公司 | Fastener retaining and anti-slip tool bit |
| WO2021163251A1 (en) * | 2020-02-13 | 2021-08-19 | Milwaukee Electric Tool Corporation | Tool bit having a bimetal tip |
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