CN109127908A - A kind of auto parts and components production and processing mold and its manufacturing method - Google Patents
A kind of auto parts and components production and processing mold and its manufacturing method Download PDFInfo
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- CN109127908A CN109127908A CN201810988042.9A CN201810988042A CN109127908A CN 109127908 A CN109127908 A CN 109127908A CN 201810988042 A CN201810988042 A CN 201810988042A CN 109127908 A CN109127908 A CN 109127908A
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- lower mold
- upper mold
- mold base
- seat
- mould core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
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- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The present invention relates to technology of die manufacturing fields, and disclose a kind of auto parts and components production and processing mold, including upper mold seat and lower mold base, the front of the upper mold seat and lower mold base is fixedly installed with mould core, the front of the lower mold base is fixedly installed with positioning pin, the two sides of the upper mold seat and lower mold base are welded with receiving hopper, and the front of the upper mold seat offers dowel hole.The auto parts and components production and processing mold and its manufacturing method, one is placed blade in place by finding waste material at one near the projecting inward face of mold position easy to crack, material will touch blade at this time, blade, which will do it, to be punctured, and material herein can be displaced with further stretch, and effectively prevent cracking phenomena, and the shape of blade is using double arcs, it tear double cambered blades will not with seam, the scrappage of the product made is substantially reduced, improved work efficiency.
Description
Technical field
The present invention relates to technology of die manufacturing field, specially a kind of auto parts and components production and processing mold and its manufacture
Method.
Background technique
Automobile is usually to carry out assembling processing by multiple components, and the processing method of all parts is also different,
In the process of automobile case, usually using mold to sheet metal carry out punching press be made, however in this process some
Face may require that protrusion is relatively high, with pressing down for mold, punching press be carried out to plate, when plate is stretched to certain thickness journey
Degree, mold implement plate compress always, are easy for the problem of causing cracking at this time, so that the qualification rate of product reduces, work
Efficiency decreases.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of auto parts and components production and processing mold and its manufacturers
Method prevents cracking phenomena when having punching press, solve some faces of mold protrusion it is higher when, to plate carry out punching press be easy to cause out
Split the problem of.
(2) technical solution
For the purpose for realizing above-mentioned raising qualification rate, the invention provides the following technical scheme: a kind of auto parts and components produce
The front of die for processing, including upper mold seat and lower mold base, the upper mold seat and lower mold base is fixedly installed with mould
Has core, the front of the lower mold base is fixedly installed with positioning pin, and the two sides of the upper mold seat and lower mold base are welded
There is receiving hopper, the front of the upper mold seat offers dowel hole, and the outer surface of cupular part of the lower mold base is solid by bolt
Dingan County is equipped with blade.
Preferably, there are four the positioning pin settings, the positioning pin is adapted with the size of dowel hole and position.
Preferably, the mould core is made of the bloom that turning is linearly cut into, and the mould core is located at upper mold
The center position of seat and lower mold base.
Preferably, the blade is located at position at the waste material shearing of lower mold base.
Preferably, the shape of the blade is double arcs.
A kind of auto parts and components production and processing manufacturing method of mold, comprising the following steps:
1), upper mold seat and the processing of lower mold base: material of main part is HT300 gray iron.
S1, upper mold seat and lower mold base are cast using lost foam casting process, by what is matched with casting dimension shape
Bubbles model bonding is combined into model cluster, after brushing fireproof coating and drying, is embedded in vibration molding in drystone sand, under negative pressure
Casting, makes model gasify, and liquid metals occupies modal position, forms upper mold seat and lower mold base after solidification is cooling.
S2, upper mold seat and lower mold base are subjected to roughing: first using the milling cutter that diameter is D12 to upper mold seat and under
The entirety of mold base is polished, and grinds coarse for Ra=0.32 μm, reuses milling cutter that diameter is D10 to upper mold seat
Edge angle with lower mold base into polishing, and grind it is coarse for Ra=0.30 μm, the surplus of upper mold seat and lower mold base
It is left to 0.5mm.
S3, by after roughing upper mold seat and lower mold base be heat-treated: first with quick even thin annealing process to upper
Mold base and lower mold base carry out conditioning treatment, then are carried out finally with low temperature quenching heat treatment to upper mold seat and lower mold base
Heat treatment carries out final surface peening to upper mold seat and lower mold base finally by carbo-nitriding thermo-chemical treatment, so that on
Mold base and lower mold base intensity reach HRC58-62, and density reaches 7850Kg/m3。
S4, upper mold seat and lower mold base are finished: first using diameter be D8 milling cutter to upper mold seat and under
The entirety and edge angle of mold base are polished, and ensure the precision of upper mold seat and lower mold base size, and surplus is left to
0.25mm, and the upper mold seat ground and lower mold base it is coarse be Ra=0.28 μm.
S5, the lower mold base after the positioning pin made and polishing is welded, then upper mold seat outer surface is opened up into positioning
Pin hole, and the dowel hole position opened up every time need to be depending on the position of positioning pin, and the ruler of each dowel hole
It is very little to be adapted with positioning pin size, then receiving hopper and upper mold seat and lower mold base are welded.
S6, by the upper mold seat of final molding and lower mold base again by carbo-nitriding thermo-chemical treatment, make upper mold
Seat and lower mold base reach preliminary surface reinforcing, so that upper mold seat and lower mold base intensity reach HRC58-65, density reaches
7852Kg/m3。
2), mould core is processed: mould core is Cr12MoV material.
S1, mould core use Cr12MoV material, and diameter is the bloom of 2-4cm.
S2, the size for marking out bloom is perhaps ground by turning then again with turning or grinding by linearly cutting
The bloom that the mode cut is cut into a thickness of 4cm.
S3, mould core is subjected to roughing, first the entirety of mould core is beaten using the milling cutter that diameter is D10
Mill, and grind coarse for Ra=0.30 μm, milling cutter that diameter is D8 is reused to the edge angle of mould core into polishing, and is ground
Out coarse is Ra=0.28 μm, and surplus stays 0.8mm.
S4, mould core is heat-treated, conditioning treatment first is carried out to mould core with quick even thin annealing process,
Final heat treatment is carried out to mould core with low temperature quenching heat treatment again, finally by -196 DEG C of liquid nitrogen deep processing of use to mould
Have core and carry out final surface peening, so that mould core intensity reaches HRC58-62, density reaches 7850Kg/m3。
S5, mould core is tentatively finished, GD single alundum grinding wheel is first selected tentatively add to mould core
Work reuses the milling cutter that diameter is D6 and polishes the entirety and edge angle of mould core, keeps the mould core ground coarse
Up to Ra=0.25 μm, surplus is left to 0.3mm.
3), blade is processed: blade is Cr12MoV material.
S1, go out two sections of cambered blades by punch process.
S2, punch forming: identical two sections of cambered blades are put in stamping die, carry out punch forming.
S3, stamping forming blade is subjected to final finishing polishing, and the blade ground using GD single alundum grinding wheel
Coarse is Ra=0.25 μm.
4, assembly technology:
S1, by after processing upper mold seat and lower mold base and mould core carry out welding and rivet assemble.
S2, the blade made is mounted by means of bolts on position at lower mold base waste material shearing again.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of auto parts and components production and processing mold and its manufacturing method,
Have it is following the utility model has the advantages that
1, the auto parts and components production and processing mold and its manufacturing method, by easy to crack in the projecting inward face of mold
The place that waste material at one is nearby found in position places one blade, and material will touch blade at this time, and blade, which will do it, to be punctured,
Material herein can be displaced with further stretch, and effectively prevent cracking phenomena, and the shape of blade is made double using double arcs
Cambered blade will not be torn with seam, and the scrappage of the product made is substantially reduced, improved work efficiency.
2, the auto parts and components production and processing mold and its manufacturing method, one piece one piece of steel is used by mould core
Block carries out wire cutting, is assembled into inside upper mold seat and lower mold base, so that the mould core good integrity after assembling, does not have
Have deviation, and reduce costs, by mould core using low temperature quenching be heat-treated so that mould core have high quality,
Low energy consumption, the advantages that, then by setting GD single alundum grinding wheel, avoid and generate swiping and extruding in workpiece surface, influence mould
Has the precision of core surface.
Detailed description of the invention
Fig. 1 is that the structure that lower mold shaft is surveyed in a kind of auto parts and components production and processing mold of the present invention and its manufacturing method is shown
It is intended to；
Fig. 2 is that the structure that upper mold shaft is surveyed in a kind of auto parts and components production and processing mold of the present invention and its manufacturing method is shown
It is intended to；
Fig. 3 is that knot is amplified at the position A in Fig. 1 in a kind of auto parts and components production and processing mold of the present invention and its manufacturing method
Structure schematic diagram.
In figure: 1 upper mold seat, 2 lower mold bases, 3 mould cores, 4 positioning pins, 5 receiving hoppers, 6 dowel holes, 7 bolts, 8
Blade.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3, a kind of auto parts and components production and processing mold, including upper mold seat 1 and lower mold base 2 are please referred to, on
The front of mold base 1 and lower mold base 2 is fixedly installed with mould core 3, and the mould core 3 of upper mold seat 1 is for punching press
The hole of part, the mould core 3 of lower mold base 2 are the shapes for stamping out part, and the front of lower mold base 2 is fixedly installed with
The two sides of positioning pin 4, upper mold seat 1 and lower mold base 2 are welded with receiving hopper 5, and receiving hopper 5 is when carrying out blank for bloom
The component of de- material, while also having the function of that billot or strip is guided to enter in mold base, the front of upper mold seat 1 offers fixed
Position pin hole 6, the positioning pin 4 positioned at lower mold base 2 and the dowel hole 6 positioned at upper mold seat 1 are for stamping die punching press position
It positioned, be oriented to when setting, prevent the effect of offset, and positioning pin 4 and dowel hole 6 in a forward direction is to prevent upper mold
Tool seat 1 passes through head, or is not sent to the effect of position, and the outer surface of cupular part of lower mold base 2 is fixedly installed with blade by bolt 7
8, blade 8 be for prevent 3 convex of mould core appear upper progress punching press when bloom there is the effect of cracking phenomena.
In the present invention, positioning pin 4 is provided at least four, and the positioning pin 4 is mutually fitted with the size of dowel hole 6 and position
Match, positioning pin 4 is fixedly connected using welding and riveting with lower mold base 2, and dowel hole 6 is beaten using lathe upper mold seat 1
The mode in hole is formed.
In the present invention, mould core 3 is made of several blooms, and the mould core 3 is located at upper mold seat 1 and lower mold
Seat 2 center position, mould core 3 be use turning or be ground be cut by way of linear incision for bloom.
In the present invention, blade 8 is located at position at the waste material shearing of lower mold base 2.
In the present invention, the shape of blade 8 is double arcs, and blade 8 is that identical two sections of cambered blades 8 are put in stamping die
In, it is stamping forming.
A kind of auto parts and components production and processing manufacturing method of mold, it is characterised in that: the following steps are included:
1), upper mold seat 1 and the processing of lower mold base 2: material of main part is HT300 gray iron.
S1, upper mold seat 1 and lower mold base 2 are cast using lost foam casting process, will matched with casting dimension shape
Bubbles model bonding be combined into model cluster, after brushing fireproof coating and drying, vibration molding in drystone sand is embedded in, in negative pressure
Lower casting, makes model gasify, and liquid metals occupies modal position, forms upper mold seat 1 and lower mold base 2 after solidification is cooling.
S2, upper mold seat 1 and lower mold base 2 are subjected to roughing: first using the milling cutter that diameter is D12 to upper mold seat 1
Polish with the entirety of lower mold base 2, and the upper mold seat 1 ground and lower mold base 2 it is coarse be Ra=0.32 μm, reuse
The milling cutter that diameter is D10 to the edge angle of upper mold seat 1 and lower mold base 2 into polishing, and the upper mold seat 1 and lower mold ground
Coarse seat 2 is Ra=0.30 μm.
S3, by after roughing upper mold seat 1 and lower mold base 2 be heat-treated: first with quick even thin annealing process pair
Upper mold seat 1 and lower mold base 2 carry out conditioning treatment, then with low temperature quenching heat treatment to upper mold seat 1 and lower mold base 2 into
It is strong to carry out final surface to upper mold seat 1 and lower mold base 2 finally by carbo-nitriding thermo-chemical treatment for row final heat treatment
Change, so that upper mold seat 1 and lower 2 intensity of mold base reach HRC58-62, density reaches 7850Kg/m3Wherein quickly even thin annealing
Technique, which refers to, is first heated up to 780 degree, then the technique handled by spheroidizing, low temperature to upper mold seat 1 and lower mold base 2
Quenching heat treatment refers to quench at 100 DEG C lower than conventional quenching heating temperature to upper mold seat and lower mold base, carbo-nitriding
Heat treatment is learned to refer in upper mold seat 1 and lower 2 surface layer of mold base while the heat treatment process for penetrating into carbon, nitrogen, wherein being with carburizing
It is main, supplemented by nitriding.
S4, upper mold seat 1 and lower mold base 2 are finished: first using the milling cutter that diameter is D8 to 1 He of upper mold seat
The entirety and edge angle of lower mold base 2 are polished, and ensure the precision of upper mold seat 1 and lower 2 size of mold base, and surplus is stayed
To 0.25mm, and the upper mold seat 1 ground and lower mold base 2 it is coarse be Ra=0.28 μm.
S5, the lower mold base 2 after the positioning pin 4 made and polishing is welded, then 1 outer surface of upper mold seat is opened up and is determined
Position pin hole 6, and 6 position of dowel hole opened up every time need to be depending on the position of positioning pin 4, and each dowel hole
6 size is adapted with 4 size of positioning pin, then receiving hopper 5 and upper mold seat 1 and lower mold base 2 are welded.
S6, by the upper mold seat 1 of final molding and lower mold base 2 again by carbo-nitriding thermo-chemical treatment, make upper mold
Tool seat 1 and lower mold base 2 reach preliminary surface reinforcing, so that upper mold seat 1 and lower 2 intensity of mold base reach HRC58-65, it is close
Degree reaches 7852Kg/m3。
2), mould core 3 is processed: mould core 3 is Cr12MoV material.
S1, mould core 3 use Cr12MoV material, bloom that bloom that preferred diameter is 2cm, diameter are 3cm and straight
Diameter is the bloom of 4cm.
S2, it is perhaps ground by turning and marks the size of bloom and then pass through linear incision with turning or grinding again
Mode be cut into the bloom with a thickness of 4cm.
S3, mould core 3 is subjected to roughing: first the entirety of mould core 3 is beaten using the milling cutter that diameter is D10
Mill, and it is Ra=0.30 μm that the mould core 3 that grinds is coarse reuses milling cutter that diameter is D8 to the edge angle of mould core 3
Into polishing, and it is Ra=0.28 μm that the mould core 3 that grinds is coarse, and surplus stays 0.8mm.
S4, mould core 3 is heat-treated: first mould core 3 is carried out at preparation heat with quick even thin annealing process
Reason, then final heat treatment is carried out to mould core 3 with low temperature quenching heat treatment, finally by -196 DEG C of liquid nitrogen deep processing of use
Final surface peening is carried out to mould core 3, so that 3 intensity of mould core reaches HRC58-62, density reaches 7850Kg/m3,
Wherein -196 DEG C of liquid nitrogen deep processing refer to the processing quenching mould core 3 in the environment of -196 DEG C (liquid nitrogen), thereafter at 400 DEG C
Tempering is primary, and quick even thin annealing process, which refers to, is first heated up to 960 degree to mould core 3, then is handled by spheroidizing
Technique, low temperature quenching heat treatment refers to and quenches at 90 DEG C lower than conventional quenching heating temperature to mould core 3.
S5, mould core 3 is tentatively finished: first GD single alundum grinding wheel is selected to carry out tentatively mould core 3
Processing reuses the milling cutter that diameter is D6 and polishes the entirety and edge angle of mould core 3, makes the mould core 3 ground
Coarse to reach Ra=0.25 μm, surplus is left to 0.3mm.
3), blade 8 is processed: blade 8 is Cr12MoV material.
S1, go out two sections of cambered blades 8 by punch process, then cambered blade 8 is finished: not destroying blade 8
It is under the premise of periphery cutting edge, the metal of 8 engaging portion of blade of two sections of cambered blades 8 is thinning by squeezing, then in thinning gold
Belong to part and process protrusion, protrusion should be lower than the top of external thicker blade portion.
S2, punch forming: identical two sections of cambered blades 8 are put in stamping die, carry out punch forming.
S3, stamping forming blade 10 is subjected to final finishing polishing, and the work ground using GD single alundum grinding wheel
Coarse part is Ra=0.25 μm.
4, assembly technology:
S1, by after processing upper mold seat 1 and lower mold base 2 and mould core 3 carry out welding and rivet assembles, then will dress
The mold base and mould core 3 prepared carries out whole finishing: first selecting GD single alundum grinding wheel to process to whole, then makes
The milling cutter for being D6 with diameter is processed again to whole, and it is Ra=0.25 μm that the workpiece ground is coarse, then by using-
196 DEG C of liquid nitrogen deep processing carry out final surface peening to whole, so that integral strength reaches HRC58-70, density reaches
7853Kg/m3。
S2, the blade 8 made is fixedly mounted on position at lower 2 waste material shearing of mold base by bolt 7 again, then into
The cleaning of row extreme trace carries out final inside and outside polishing again to the mold assembled, reaches 96% criterion of acceptability.
In conclusion the auto parts and components production and processing mold and its manufacturing method, by projecting inward in mould core 3
The place that waste material at one is nearby found in face position easy to crack places one blade 8, and material will touch blade 8 at this time,
Blade 8, which will do it, to be punctured, and material herein can be displaced with further stretch, and effectively prevent cracking phenomena, and the shape of blade 8
Shape tear double cambered blades 8 will not with seam using double arcs, and the scrappage of the product made substantially reduces, and improves work
Efficiency, and wire cutting is carried out using one piece one piece of bloom by mould core 3, it is assembled into upper mold seat 1 and lower mold base 2
Face, so that 3 good integrity of mould core after assembling, without deviation, and reduces costs, by adopting to mould core 3
Be heat-treated with low temperature quenching so that mould core 3 have many advantages, such as high quality, low energy consumption, then by setting GD single alundum sand
Wheel polishing, avoids and generates swiping and extruding in workpiece surface, influence the precision on 3 surface of mould core；Solve mold some
Face protrusion it is higher when, to plate carry out punching press be easy to cause cracking the problem of.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of auto parts and components production and processing mold, including upper mold seat (1) and lower mold base (2), it is characterised in that: institute
The front for stating upper mold seat (1) and lower mold base (2) is fixedly installed with mould core (3), the front of the lower mold base (2)
It is fixedly installed with positioning pin (4), the two sides of the upper mold seat (1) and lower mold base (2) are welded with receiving hopper (5), described
The front of upper mold seat (1) offers dowel hole (6), and the outer surface of cupular part of the lower mold base (2) is fixed by bolt (7)
Blade (8) are installed.
2. a kind of auto parts and components production and processing mold according to claim 1, it is characterised in that: the positioning pin
(4) there are four setting, the positioning pin (4) is adapted with the size of dowel hole (6) and position.
3. a kind of auto parts and components production and processing mold according to claim 1, it is characterised in that: the mould core
(3) it is made of the bloom that turning is linearly cut into, the mould core (3) is being located at upper mold seat (1) and lower mold base (2) just
Middle position.
4. a kind of auto parts and components production and processing mold according to claim 1, it is characterised in that: the blade (8)
The position at the waste material shearing of lower mold base (2).
5. a kind of auto parts and components production and processing mold according to claim 1, it is characterised in that: the blade (8)
Shape be double arcs.
6. the manufacturing method that mold is used in a kind of auto parts and components production and processing, it is characterised in that: the following steps are included:
1), upper mold seat (1) and lower mold base (2) processing: material of main part is HT300 gray iron.
S1, upper mold seat (1) and lower mold base (2) are cast using lost foam casting process, will matched with casting dimension shape
Bubbles model bonding be combined into model cluster, after brushing fireproof coating and drying, vibration molding in drystone sand is embedded in, in negative pressure
Lower casting, makes model gasify, and liquid metals occupies modal position, forms upper mold seat (1) and lower mold base after solidification is cooling
(2)；
S2, upper mold seat (1) and lower mold base (2) are subjected to roughing: first using the milling cutter that diameter is D12 to upper mold seat
(1) the coarse milling cutter for being Ra=0.32 μm, reusing that diameter is D10 polished, and ground with the entirety of lower mold base (2)
To the edge angle of upper mold seat (1) and lower mold base (2) into polishing, and grind it is coarse be Ra=0.30 μm；
S3, by after roughing upper mold seat (1) and lower mold base (2) be heat-treated: first with quick even thin annealing process pair
Upper mold seat (1) and lower mold base (2) carry out conditioning treatment, then are heat-treated with low temperature quenching to upper mold seat (1) and lower die
Have seat (2) and carry out final heat treatment, finally by carbo-nitriding thermo-chemical treatment to upper mold seat (1) and lower mold base (2) into
The final surface peening of row, so that upper mold seat (1) and lower mold base (2) intensity reach HRC58-62, density reaches 7850Kg/
m3；
S4, upper mold seat (1) and lower mold base (2) are finished: first using the milling cutter that diameter is D8 to upper mold seat (1)
It polishes with the entirety and edge angle of lower mold base (2), and ensures the essence of upper mold seat (1) and lower mold base (2) size
Degree, surplus are left to 0.25mm, and it is Ra=0.28 μm that the upper mold seat (1) and lower mold base (2) ground is coarse；
S5, the lower mold base (2) behind the positioning pin made (4) and polishing is welded, then upper mold seat (1) outer surface is opened up
Dowel hole (6), and dowel hole (6) position opened up every time need to depending on the position of positioning pin (4), and each
The size of dowel hole (6) is adapted with positioning pin (4) size, then by receiving hopper (5) and upper mold seat (1) and lower mold base
(2) it welds；
S6, by the upper mold seat (1) of final molding and lower mold base (2) again by carbo-nitriding thermo-chemical treatment, make upper mold
Tool seat (1) and lower mold base (2) reach preliminary surface reinforcing, so that upper mold seat (1) and lower mold base (2) intensity reach
HRC58-65, density reach 7852Kg/m3；
2), mould core (3) is processed: mould core (3) is Cr12MoV material.
S1, mould core (3) use Cr12MoV material, and diameter is the bloom of 2-4cm；
S2, it is perhaps ground by turning and marks then side that the size of bloom passes through linear incision with turning or grinding again
The bloom that formula is cut into a thickness of 4cm；
S3, mould core (3) are subjected to roughing: first the entirety of mould core (3) is beaten using the milling cutter that diameter is D10
Mill, and grind coarse for Ra=0.30 μm, milling cutter that diameter is D8 is reused to the edge angle of mould core (3) into polishing,
And grind coarse for Ra=0.28 μm, and surplus stays 0.8mm；
S4, mould core (3) is heat-treated: first mould core (3) is carried out at preparation heat with quick even thin annealing process
Reason, then final heat treatment is carried out to mould core (3) with low temperature quenching heat treatment, at -196 DEG C of liquid nitrogen deeps of use
Reason carries out final surface peening to mould core (3), so that mould core (3) intensity reaches HRC58-62, density reaches
7850Kg/m3；
S5, mould core (3) is tentatively finished: first selects GD single alundum grinding wheel to carry out mould core (3) preliminary
Processing reuses the milling cutter that diameter is D6 and polishes the entirety and edge angle of mould core (3), makes the mould core ground
(3) coarse to reach Ra=0.25 μm, surplus is left to 0.3mm；
3), blade (8) is processed: blade (8) is Cr12MoV material.
S1, go out two sections of cambered blades (8) by punch process；
S2, punch forming: identical two sections of cambered blades (8) are put in stamping die, carry out punch forming；
S3, stamping forming blade (10) are subjected to final finishing polishing, and the blade ground using GD single alundum grinding wheel
Coarse is Ra=0.25 μm；
4), assembly technology:
S1, by after processing upper mold seat (1) and lower mold base (2) and mould core (3) carry out welding and rivet assembly；
S2, the blade made (8) are fixedly mounted on position at lower mold base (2) waste material shearing by bolt (7) again.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940764A (en) * | 2019-03-24 | 2019-06-28 | 荆门市亿美工业设计有限公司 | A kind of oxygen-free copper bar and the anti-fracture graphite bush device of oxygen-free copper bar |
| CN110359039A (en) * | 2019-07-01 | 2019-10-22 | 浙江金奥汽车装备有限公司 | A kind of Press Tools for Automobiles production method based on laser melting reinforcement technique |
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| CN109940764A (en) * | 2019-03-24 | 2019-06-28 | 荆门市亿美工业设计有限公司 | A kind of oxygen-free copper bar and the anti-fracture graphite bush device of oxygen-free copper bar |
| CN109940764B (en) * | 2019-03-24 | 2021-03-26 | 江西创德博越金属制品有限公司 | Device for manufacturing graphite sleeve with oxygen-free copper rod and fracture prevention function |
| CN110359039A (en) * | 2019-07-01 | 2019-10-22 | 浙江金奥汽车装备有限公司 | A kind of Press Tools for Automobiles production method based on laser melting reinforcement technique |
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