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Shaping device of solid hot extrusion magnesium alloy wheel hub and shaping method thereof

A magnesium alloy, hot extrusion technology, applied in the directions of wheels, transportation and packaging, vehicle parts, etc., can solve the problems of large grain size, unreasonable fiber distribution and complex manufacturing process of magnesium alloy wheel hubs, and achieve reasonable distribution of fiber structure, The effect of saving energy consumption, increasing productivity and safety

Inactive Publication Date: 2006-01-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complex manufacturing process of the existing magnesium alloy wheel hub, large crystal grains of the magnesium alloy wheel hub, poor structure density, unreasonable fiber distribution and poor mechanical properties, the present invention provides a forming method for a solid-state hot-extruded magnesium alloy hub. Device and forming method thereof, the technical scheme for solving the problem are as follows:

Method used

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  • Shaping device of solid hot extrusion magnesium alloy wheel hub and shaping method thereof
  • Shaping device of solid hot extrusion magnesium alloy wheel hub and shaping method thereof
  • Shaping device of solid hot extrusion magnesium alloy wheel hub and shaping method thereof

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specific Embodiment approach 1

[0019] Specific embodiment 1: The forming device of the solid state hot extrusion magnesium alloy wheel hub of this embodiment consists of an upper template 4, a male die 3, a male die fixing plate 22, a pressing plate 18, a lower template 14, a female die 16, a support block 17, and a concave die. Mold pad 11, heat insulation board 2, punch heater 21, cavity heater 20, temperature controller 8, heat insulation pad 10, ejector rod 12, pin shaft 13, guide post 7, guide sleeve 5 , The upper end of the male mold 3 is embedded in the male mold fixing plate 22, the male mold fixing plate 22 and the upper template 4 are fixedly connected with screws 15, the support block 17 under the pressing plate 18 is seated on the female mold backing plate 11, the female mold backing plate 11 is placed on the lower template 14, the pressing plate 18, the support block 17, the die backing plate 11 and the lower template 14 are fixed and connected into one body with screws, the upper end of the guide ...

specific Embodiment approach 2

[0020] The second embodiment: The difference between this embodiment and the first embodiment is: the punch heater 21 of the device is wound on the periphery of the punch 3 by a resistance wire, and the left half mold 19 and the right half mold 6 of the mold cavity Drill a hole for inserting the resistance wire of the solid cavity heater 20, insert the resistance wire into the hole, and the temperature controller 8 implements the punch 3, the left half mold 19 and the right half mold 6 of the mold cavity through a temperature measuring probe Temperature control with mold 1. The connection relationship in other components is the same as in the first embodiment.

specific Embodiment approach 3

[0021] Specific embodiment 3: The device of this embodiment is equipped with an ejector rod 12 in the lower part of the mold cavity, and the upper end of the ejector rod 12 is provided with a pin 13 for the purpose of forming the mold by the ejector rod 12 under the action of a hydraulic mechanism. The semi-finished magnesium alloy wheel hub after being extruded in the cavity is lifted upwards. At this time, the left half mold 19 and the right half mold 6 of the mold cavity also follow upward movement. During the movement, under the action of eccentric gravity or external force, at the same time, Rotate to the outside around the pin shaft 13 and the final position is limited to the inclined surface of the pressing plate 18. The left half of the mold cavity 19 and the right half 6 are automatically divided. After the mold is divided, the small middle and large two ends of the extrusion can be smoothly taken out Round magnesium alloy car wheel blanks.

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Abstract

A solid-state hot squeezing apparatus for shaping the Mg-alloy wheel hub is composed of upper die plate, male die and its heater, heat isolating plate between said upper die plate and male die, moulding cavity heater for left and right moulding cavities, heat isolating plate between female die and its die plate, push-out rod, and temp controller. Its shaping method includes such steps as blanking, heating, holding temp, preheating die set squeezing cutting, surface treating and ageing treating.

Description

Technical field: [0001] The invention relates to a solid state hot extrusion forming device for a magnesium alloy wheel hub and a forming method thereof. Background technique: [0002] Due to the increasingly serious energy crisis and the worsening air pollution, countries all over the world have higher and higher requirements for energy conservation and environmental protection. Engine exhaust from vehicles and other vehicles has become the number one killer of air pollution. According to statistics, for every 100kg reduction in vehicle weight, the fuel consumption per 100 kilometers is reduced by 0.7 liters, and every 10% reduction in vehicle weight, fuel efficiency can also be increased by 5.5%. Therefore, reducing the weight of vehicles is an effective way to reduce energy consumption and purify the air. Even for vehicles such as electric vehicles that do not emit exhaust gas, reducing weight is an effective way to save energy consumption. Compared with steel, aluminum alloy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/40
Inventor 王少纯
Owner HARBIN INST OF TECH
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