Special mould for irregular rings long in service life
A special-shaped ring and die technology, which is applied in the manufacture of tools, forging/pressing/hammer devices, forging/pressing/hammering machines, etc., can solve the problems of insufficient rigidity of the die, the corners of the die cavity, high die requirements, and difficulty in forming. The effect of material saving, improving mechanical properties and increasing service life
Inactive Publication Date: 2014-05-07
LIYANG HONGDA MACHINERY EQUIP
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Problems solved by technology
The materials for making special-shaped rings are high-temperature alloys and stainless steel. The materials themselves are difficult to form and have high requirements for molds. The main materials for molds are alloy structural steel and alloy tool steel. These two materials have high strength, good plasticity and toughness. , but the mold will have cracks during use, and the life is very short. The main reason is that the rigidity of the mold is insufficient and the stress concentration at the corners of the cavity
Method used
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Embodiment
[0012] Embodiment: The mold of this embodiment is as attached figure 1 As shown, the main improvement is that the upper surface of the mold and the upper side of the mold are in a straight transition, the middle side is a slope transition, and the lower side and the lower surface of the mold are a rounded transition.
[0013] To be specific: common molds are prone to damage at B and D during use, and through heat treatment of the molds, the comprehensive properties of the materials have been improved, and the service life has been improved.
[0014] At B, the ordinary mold adopts a slope, which is easily damaged due to the large force during use. This mold adopts a straight-to-face transition, which improves the mechanical properties of the mold and increases the service life of the material.
[0015] At D, the rounded corner transition is adopted. Because the rounded corner is too small or there is no rounded corner at D, ordinary molds are prone to stress concentration and d...
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Abstract
The invention belongs to the field of moulds for manufacturing irregular ring pieces and relates to a special mould for manufacturing irregular rings for aero engines, rotating support rings in wind power, wind tower flanges and gear rings, large-size bearing forge rings, petroleum pipeline connectors, rail transit tires and excavator turret forge rings. The mould comprises a mould body and is characterized in that the upper surface of the mould body and the upper lateral face of the mould body are in straight face transition, the middle lateral face is in inclined face transition, and the lower lateral face and the lower surface of the mould body are in circular bead transition. The special mould can completely meet the requirement for irregular ring machining size accuracy, materials are saved by 60%, the comprehensive production cost is reduced by 40%, the service life is prolonged by over 5 times, near-net forming is achieved, and high temperature alloy steel irregular ring rolling forming is achieved.
Description
technical field [0001] The invention belongs to the field of molds for manufacturing special-shaped rings, and is a mold for producing special-shaped rings for aeroengines, slewing support rings in wind power, wind power tower flanges and ring gears, large-size bearing forging rings, oil pipeline connectors, rails Special molds for special-shaped rings such as traffic wheel tires, excavator turret forging rings, etc. Background technique [0002] Special molds for special-shaped rings are mainly used to process special-shaped rings for aero-engines, slewing support rings for wind power, wind power tower flanges and ring gears, large-size bearing forging rings, oil pipeline connectors, rail transit wheel tires, and excavator turrets. Forging rings, etc. Die forging forming technology is widely used in high-temperature alloy forgings, especially the near-net forming technology has irreplaceable advantages, which can reduce the consumption of raw materials as much as possible,...
Claims
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IPC IPC(8): B21J13/02
Inventor 袁浩王小明冯爱新
Owner LIYANG HONGDA MACHINERY EQUIP