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Process flow of aluminum alloy die-casting mold manufacturing

date:2022-07-17 17:48:41 visits:3178 source:admin

The full name of aluminum formwork is aluminum alloy formwork for construction. It is a new generation of formwork system after wood formwork and steel formwork. The aluminum formwork is designed according to the modulus, extruded by special equipment, and can be freely combined according to different structural dimensions. The design, development and construction application of aluminum formwork is a major development in the construction industry. The application of aluminum formwork system in the construction industry has improved the construction efficiency of housing construction projects, including a lot of savings in Agricultural machinery Parts building materials and labor arrangements.

Die-casting mold making process:

Drawing review - material preparation - processing - mold base processing - mold core processing - electrode processing - mold parts processing - inspection - assembly - flying mold - mold test - production

A: Mold base processing: 1 dozen numbers, 2 A/B board processing, 3 panel processing, 4 thimble fixing board processing, 5 bottom plate processing

B: Mold core processing: 1 flash, 2 rough grinding, 3 milling machine processing, 4 fitter processing, 5 CNC rough processing, 6 heat treatment, 7 fine grinding, 8 CNC finishing, 9 EDM, 10 die saving

C: Mould parts processing: 1 slider processing, 2 pressing block processing, 3 split cone sprue sleeve processing, 4 insert processing

Mold base processing details

1. The numbering should be unified, and the mold core should also be numbered, which should be consistent with the number on the mold base and in the same direction, and it is not easy to make mistakes when assembling.

2. A/B plate processing (ie, dynamic and fixed mold frame processing), a: A/B plate processing should ensure that the parallelism and verticality of the mold frame are 0.02mm, b: milling machine processing: screw holes, water holes, top Pinhole, nozzle hole, chamfering c: fitter processing: tapping, trimming.

3. Panel processing: milling machine processing boring machine nozzle hole or processing material nozzle hole.

4. Processing of the thimble fixing plate: milling machine processing: the thimble plate and the B plate are connected with a back pin, the B plate faces up, and the thimble holes are drilled from top to bottom. Rough machining with drill, then finish machining in place with milling cutter, chamfering.

5. Bottom plate processing: milling machine processing: scribing, correction, boring, chamfering.

(Note: For some molds that need strong pulling and strong top, a strong pulling and strong top mechanism should be added, such as drilling screw holes on the thimble plate)

Core processing details

1) Rough machining of flying hexagons: machining on a milling machine to ensure verticality and parallelism, with a grinding allowance of 1.2mm

2) Coarse grinding: large water grinding process, grind the large surface first, clamp and grind the small surface with batches, ensure the verticality and parallelism are 0.05mm, and leave a margin of 0.6-0.8mm on both sides

3) Milling machine processing: first calibrate the milling machine head to ensure that it is within 0.02mm, calibrate and press the workpiece, first process screw holes, thimble holes, threading holes, countersunk holes for inserting needles, machine nozzle or material nozzle hole , Chamfer the taper hole and then make the water hole, and mill the R angle.

4) Fitting processing: tapping, typing code

5) CNC roughing

6) External heat treatment HRC48-52

7) Fine grinding; the large water mill is processed to minus 0.04mm than the mold frame to ensure that the parallelism and perpendicularity are within 0.02mm

8) CNC finishing

9) EDM

10) Save mold, ensure smoothness, and control cavity size.

11) Processing gate, exhaust, zinc alloy gate opening 0.3-0.5mm, exhaust opening 0.06-0.1mm, aluminum alloy gate opening 0.5-1.2mm exhaust opening 0.1-0.2, plastic exhaust opening Open 0.01-0.02, try to be wider and thinner.

Slider processing technology

1. First, the six sides are roughed by the milling machine, 2. The six sides are finely ground to meet the size requirements, 3. The milling machine is rough processing the hanging table, 4. The hanging table is finely ground to the size requirements and slides with the mold base row position, 5. The milling machine processes the inclined plane to ensure the inclination. Consistent with the pressing block, leave a margin for the fly mold, 6 drill holes for water transport and oblique guide, the oblique guide hole is 1 mm larger than the guide, and chamfered, and the slope of the oblique guide hole should be higher than the slope of the slider. 2 degrees less. The oblique guide post hole can also be reprocessed together with the mold base after the fly is closed and the upper mold is closed, depending on the situation.

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