Rapid manufacturing method of aluminum alloy cylinder block casting piece of embedded cylinder sleeve

A manufacturing method and technology of aluminum alloy, applied in manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of unstable aluminum-iron bonding rate, influence of cylinder liner positioning accuracy, uneven temperature drop, etc., and achieve temperature gradient control. Accurate range, guaranteed filling, and short production cycle

Active Publication Date: 2015-04-29
GUANGDONG FENGHUA ZHUOLI TECH CO LTD
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Since the cylinder liner is moved and assembled inside the sand mold after heating, the temperature will drop rapidly and unevenly, the installation time is very short, and the operation requirements for each process are very high, the positioning accuracy of the cylinder liner will be affected, and the bonding rate of aluminum and iron after casting Will be unstable and prone to defective products

Method used

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  • Rapid manufacturing method of aluminum alloy cylinder block casting piece of embedded cylinder sleeve
  • Rapid manufacturing method of aluminum alloy cylinder block casting piece of embedded cylinder sleeve
  • Rapid manufacturing method of aluminum alloy cylinder block casting piece of embedded cylinder sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one, see image 3 , Figure 4 , Figure 9 , a moldless rapid manufacturing method for aluminum alloy cylinder block castings with cylinder liners, comprising the following sequential steps: the first step is to obtain the 3D data of the aluminum alloy cylinder blocks with cylinder liners to be cast; the second step is to analyze the 3D data and determine the process Scheme; the third step, 3D data parting processing; the fourth step, the decomposition and manufacture of the core; the fifth step, the box pouring; the sixth step, cleaning and inspection of the casting. What is special is that in the third step of 3D data mold splitting process, the design of the aluminum alloy cylinder block with cylinder liner is divided into: a pair of sprue sand molds 1 and 2, left sand mold 3, rear sand mold 5, bottom sand mold Sand mold 6, right sand mold 7, cylinder liner positioning tool 8, cylinder liner 9, water jacket core 10, crankcase core group 11, riser 12, fron...

Embodiment 2

[0030] In the second embodiment, since the thickness of aluminum between the cylinder liners is 2mm, it is easy to produce cold shut and insufficient pouring; the positioning dimension accuracy of the cylinder liners is required to be high, and the bonding rate of aluminum and iron is required to be greater than 95%. In order to solve this technical difficulty, on the basis of Example 1, a set of auxiliary tooling is designed to ensure the position accuracy between them, and the size and position accuracy between them are guaranteed by processing metal profiles-assembly-three-coordinate detection, Auxiliary tooling such as Figure 5 — Figure 8 As shown, the auxiliary tooling is composed of a positioning post mounting seat 15, four sets of positioning posts 16, and four sets of induction coils 4. Each positioning post 16 is respectively connected with the positioning mounting seat 15 with a screw, and the positioning post 16 cooperates with the positioning post mounting seat 1...

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Abstract

The invention discloses a rapid manufacturing method of an aluminum alloy cylinder block casting piece of an embedded cylinder sleeve. The rapid manufacturing method comprises the following steps: obtaining 3D data of a to-be-cast aluminum alloy cylinder block of the embedded cylinder sleeve; analyzing the 3D data; determining a process scheme; carrying out parting processing on the 3D data; decomposing and manufacturing a mold core; casting in a manner of mold assembling to obtain a casting piece; cleaning the casting piece; and checking, wherein the design of an aluminum alloy cylinder block mold core of the embedded cylinder is divided into various sand molds and sand mold groups after the 3D data are subjected to parting processing; a left sand mold, a right sand mold, a front sand mold, a rear sand mold, a bottom sand mold, a dead head, a pouring cup and a sprue sand mold are fabricated by adopting a PDM model direct milling technology in the decomposing and fabricating processes of the mold core; and a water sleeve core and a crank case core assembly are fabricated by adopting a PCM patternless casting manufacturing technology. The method has the characteristics of being fast, accurate, efficient and economical, so that the high-quality aluminum alloy cylinder block of the embedded cylinder sleeve for an engine is manufactured; and the method is especially suitable for rapid manufacturing of one-piece, individual, small-batch and complicated products, new product development, and the like.

Description

technical field [0001] The invention relates to a manufacturing technology of an aluminum alloy cylinder body casting for an automobile engine, in particular to a rapid manufacturing method for an aluminum alloy cylinder body casting with a cylinder liner inlaid. Background technique [0002] The aluminum alloy cylinder block is one of the core parts of the automobile engine. At present, it is mainly manufactured by low-pressure, core sand gravity and foundry casting processes. Low-pressure casting has absorbed the advantages of stable bottom injection in gravity casting and crystallization and solidification of castings under pressure in pressure casting, and has become an important process for the production of aluminum alloy castings. The hardware cost of low-pressure casting equipment is large, and the whole process has a long cycle from design to production, which is generally suitable for mass production of single products. Core sand mold gravity casting aluminum cyli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/10B22C9/24
Inventor 吴爵盛金枫张全艺卢强林佰达梁宜鉴
Owner GUANGDONG FENGHUA ZHUOLI TECH CO LTD
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