Increasing Productivity of Connecting Rods Machining

Ivanov, Vitalii; Dehtiarov, Ivan; Залога, Вільям Олександрович; Kosov, Illia; Savchuk, Volodymyr Ivanovych

doi:10.1007/978-3-030-50794-7_26

Cited by 9 publications

(2 citation statements)

References 33 publications

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“…The material properties of the fixture and the workpiece are summarized in Table 2. To evaluate the results of numerical modeling and theoretical performance of the structure, we compare them with the results of similar indicators obtained in previous studies [32] and the allowable values of the permissible parameters for the connecting rod from the average values of its dimensions: length-170 mm, width-40 mm, and height-20 mm.…”

Section: Stress-strain Analysis Of the System "Fixture-workpiece"mentioning

confidence: 99%

Development of Flexible Fixtures with Incomplete Locating: Connecting Rods Machining Case Study

et al. 2022

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The rapid development of manufacturing in recent years has led to a significant expansion of the technological capabilities of modern metal-cutting equipment. Therefore, the modern approach to intensifying production requires an advanced fixture design. Design and manufacture of flexible fixtures capable of machining similar shapes and sizes of complex geometry parts reduce setup time. The article aims to design flexible fixtures for parts such as one-piece connecting rods under incomplete locating conditions. The advantages are the minimum number of parts and tool availability for multi-axis machining connecting rods in one setup. This approach, combined with up-to-date machining centers and industrial robots, can increase the production efficiency of manufacturing non-removable connecting rods. This effectiveness is in a decrease in the number of operations by 5–7 times, fixtures—by 3–4 times, and machine tools—by 3–5 times, depending on the type of a non-removable connecting rod and its design features. The numerical simulation results of the proposed fixture design confirmed the comprehensive technological capabilities and dynamic characteristics. Particularly, a decrease in displacements and oscillation amplitudes up to 7% compared to the full-basing locating chart was provided. It is determined that the system “fixture–workpiece” entirely meets all the strength, accuracy, and rigidity parameters, which allows you to perform machining with intensive cutting modes. The amplitudes of oscillations do not exceed the tolerances on the dimensions of these surfaces, established by requirements for non-removable connecting rods, and all displacements are elastic. During numerical simulation, the workpiece position remained stable at all machining steps.

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Section: Stress-strain Analysis Of the System "Fixture-workpiece"mentioning

confidence: 99%

Development of Flexible Fixtures with Incomplete Locating: Connecting Rods Machining Case Study

et al. 2022

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“…In the production of automotive connecting rods, the machining technology described in the literature is used [ 23 , 24 , 25 ]. The machining of connecting rods gives the surfaces the desired shape, dimensions and surface quality by removing material from the charge in the form of a cuboid or cylinder using cutting tools.…”

Section: Introductionmentioning

confidence: 99%

The New Technology of Die Forging of Automotive Connecting Rods from EN AB-71100 Aluminium Alloy Cast Preforms

Dziubińska

2023

Materials

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This article presents a new technology for forming automotive connecting rod forgings by means of die forging from cast performs from EN AB-71100 (EN AB-AlZn10Si8Mg) aluminum alloy. A premise was made that the production process would be carried out on forging presses. The process of forming connecting rod forgings was analyzed considering different deformation rates related to the type of machine used: a crank press and a screw press. The billet in the form of in-house designed, shaped preforms cast into sand molds with two variants of geometry was used in the process. The numerical analysis of the new process was carried out on the basis of the finite element method using Deform 3D, the simulation software for metal forming. The simulations were conducted in the spatial deformation conditions, considering the full thermomechanical analysis. Based on the simulations, certain important findings concerning the novel process were acquired, including the distribution of stress, deformation, temperatures, cracking criterion and energy parameters. The results of numerical tests confirmed the possibility of producing defect-free forgings of connecting rods from EN AB-71100 aluminum alloy on forging presses by means of the proposed technology. The proposed process of forging using crank and screw presses was verified in the course of tests conducted in industrial conditions. The properly formed connecting rod forgings were subjected to quality tests in terms of their structure and mechanical properties.

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Complex Recognition Approach for Cutting Part of Cutters in Finishing Turning

Derevianchenko

Fomin

2021

Lecture Notes in Mechanical Engineering

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Increasing Productivity of Connecting Rods Machining

Cited by 9 publications

References 33 publications

Development of Flexible Fixtures with Incomplete Locating: Connecting Rods Machining Case Study

Development of Flexible Fixtures with Incomplete Locating: Connecting Rods Machining Case Study

The New Technology of Die Forging of Automotive Connecting Rods from EN AB-71100 Aluminium Alloy Cast Preforms

Complex Recognition Approach for Cutting Part of Cutters in Finishing Turning

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