The influence of pre-settings of the automated system rapid prototyping on the qualitative characteristics of formation

Куликов, Михаил; Larionov, Maksim; Sheptunov, Sergey A.; Gusev, Denis

doi:10.1109/itmqis.2016.7751916

Cited by 5 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An important mechanical engineering task is to reduce the amount of machining by cutting upon getting a billet approaching in shape and size to the finished product (Hakansson, 2015;Hitomi, 2017;Zheng, 2014;Semenov et al, 2019b). As a result, there is the development of additive and hybrid shaping technologies, including pressure processing methods (Semenov et al, 2019;Kopp, 1996;Kulikov et al, 2016;Kulikov et al, 2017). Simultaneously, engineers and technologists face tasks of increasing the efficiency of new technologies and reducing their implementation cost.…”

Section: Literature Reviewmentioning

confidence: 99%

Evaluation of the Contact Surface Parameters at Knurling Finned Heat-Exchanging Surface by Knurls at Ring Blanks

Tatarkanov¹,

Alexandrov²,

Olejnik³

2020

PTQ

View full text Add to dashboard Cite

Tubular parts with an external finned heat-exchanging surface are usually produced by the laborious method of cutting on lathes. Besides, there is a method for the high-performance manufacturing of fins by cold knurling with ring-cut knurls, which, compared with cutting, reduces labor intensity by two to six times with a significant increase in the operational properties of the product. The disadvantage of the cold knurling method with ring-cut knurls can be unwanted surface defects and deformations of the entire product. Obtaining finned surfaces on ring blanks with high surface quality during knurling requires accurate calculation of the ratio of longitudinal and transverse strains. The most important factors determining the ratio of longitudinal and transverse strains (rolling-out and rolling-off) are the length and width of the contact surface. The need for a quantitative assessment of the parameters of longitudinal and transverse strains determined the purpose of this manuscript. This study aimed to develop a methodology for calculating the contact surface of a knurl with a ring blank (pipe) when knurling with ring-cut knurls. The proposed method for calculating the knurl's contact surface with a tube when knurling with ring-cut knurls allows for estimating the recommended range of pipe sizes for knurling. Based on the dependencies mentioned in the manuscript, the limiting sizes for blank pipes were calculated to ensure high-quality finning. Experiments on cold rolling of ribbing on pipes with different lengths and diameter ratios were carried out, confirming the possibility of using the proposed methodology for calculating the knurl's contact surface with a pipe when knurling heat-exchanging finning with ring-cut knurls.

show abstract