Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation Industry
Nowadays, great emphasis is placed on increasing the efficiency of machining processes. However, this cannot be done at the expense of quality worsening of the machined surface. In this paper the influence of Wiper geometry on Ra and Rz surface roughness parameters is described when finishing turnin...
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| Format: | Article |
| Language: | English |
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Lublin University of Technology
2022-01-01
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| Series: | Advances in Sciences and Technology |
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| Online Access: | http://www.astrj.com/Analysis-of-the-Impact-of-Wiper-Geometry-Insert-on-Surface-Roughness-and-Chips-in,143475,0,2.html |
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| author | Piotr Szablewski Krzysztof Smak Bartłomiej Krawczyk |
| author_facet | Piotr Szablewski Krzysztof Smak Bartłomiej Krawczyk |
| author_sort | Piotr Szablewski |
| collection | DOAJ |
| description | Nowadays, great emphasis is placed on increasing the efficiency of machining processes. However, this cannot be done at the expense of quality worsening of the machined surface. In this paper the influence of Wiper geometry on Ra and Rz surface roughness parameters is described when finishing turning of materials used in the aviation industry: austenitic stainless steel XCrNiNb18-9, low alloy steel 14NiCr14 and aluminum alloy A356, as well as the chips generated in the cutting process in terms of shape were assessed. It was found that for the lowest tested feed rate during turning with a Wiper insert, the values of Ra and Rz parameters do not differ significantly from the roughness parameters obtained during machining with a conventional insert. The beneficial effect of feed rate on surface roughness for the Wiper insert is clearly visible above f ≥ 0.12 mm/rev. The biggest difference in roughness parameters was recorded for the highest value of the applied feed f = 0.28 mm/rev. Using conventional insert, Ra and Rz values are almost three times bigger than for Wiper insert. The influence of the cutting speed on the Ra and Rz parameters depends on the type of material being processed. Increasing cutting speed from vc =120 m/min to vc = 200 m/min for stainless steel, Ra and Rz values decrease about 35%. Similar situation noticed for aluminum alloy, but increasing cutting speed decrease Ra and Rz values only about 18%. The situation is different for low alloy steel. Increasing the cutting speed increases the Ra and Rz parameters by about 37%. Rz/Ra ratio shows that for feed rate f ≤ 0.12 mm/rev. cutting process is unstable, because the values are between 5.5 – 7.5, but should oscillate around 4. Increasing feed rate value to f = 0.2 mm/rev allows to stabilize the process and the ratio value is close to 4. Wiper insert create the same form chips as a conventional insert, using the same value of feed rate. |
| first_indexed | 2024-04-13T12:13:26Z |
| format | Article |
| id | doaj.art-048ad005d2c54e8eb833d571abf5d678 |
| institution | Directory Open Access Journal |
| issn | 2080-4075 2299-8624 |
| language | English |
| last_indexed | 2024-04-13T12:13:26Z |
| publishDate | 2022-01-01 |
| publisher | Lublin University of Technology |
| record_format | Article |
| series | Advances in Sciences and Technology |
| spelling | doaj.art-048ad005d2c54e8eb833d571abf5d6782022-12-22T02:47:25ZengLublin University of TechnologyAdvances in Sciences and Technology2080-40752299-86242022-01-0116120321210.12913/22998624/143475143475Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation IndustryPiotr Szablewski0https://orcid.org/0000-0003-2435-2126Krzysztof Smak1Bartłomiej Krawczyk2Pratt & Whitney Kalisz, ul. Elektryczna 4a, 62-800 Kalisz, PolandPratt & Whitney Kalisz, ul. Elektryczna 4a, 62-800 Kalisz, PolandPratt & Whitney Kalisz, ul. Elektryczna 4a, 62-800 Kalisz, PolandNowadays, great emphasis is placed on increasing the efficiency of machining processes. However, this cannot be done at the expense of quality worsening of the machined surface. In this paper the influence of Wiper geometry on Ra and Rz surface roughness parameters is described when finishing turning of materials used in the aviation industry: austenitic stainless steel XCrNiNb18-9, low alloy steel 14NiCr14 and aluminum alloy A356, as well as the chips generated in the cutting process in terms of shape were assessed. It was found that for the lowest tested feed rate during turning with a Wiper insert, the values of Ra and Rz parameters do not differ significantly from the roughness parameters obtained during machining with a conventional insert. The beneficial effect of feed rate on surface roughness for the Wiper insert is clearly visible above f ≥ 0.12 mm/rev. The biggest difference in roughness parameters was recorded for the highest value of the applied feed f = 0.28 mm/rev. Using conventional insert, Ra and Rz values are almost three times bigger than for Wiper insert. The influence of the cutting speed on the Ra and Rz parameters depends on the type of material being processed. Increasing cutting speed from vc =120 m/min to vc = 200 m/min for stainless steel, Ra and Rz values decrease about 35%. Similar situation noticed for aluminum alloy, but increasing cutting speed decrease Ra and Rz values only about 18%. The situation is different for low alloy steel. Increasing the cutting speed increases the Ra and Rz parameters by about 37%. Rz/Ra ratio shows that for feed rate f ≤ 0.12 mm/rev. cutting process is unstable, because the values are between 5.5 – 7.5, but should oscillate around 4. Increasing feed rate value to f = 0.2 mm/rev allows to stabilize the process and the ratio value is close to 4. Wiper insert create the same form chips as a conventional insert, using the same value of feed rate.http://www.astrj.com/Analysis-of-the-Impact-of-Wiper-Geometry-Insert-on-Surface-Roughness-and-Chips-in,143475,0,2.htmlsurface roughnessturningchipswiperaviation materials |
| spellingShingle | Piotr Szablewski Krzysztof Smak Bartłomiej Krawczyk Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation Industry Advances in Sciences and Technology surface roughness turning chips wiper aviation materials |
| title | Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation Industry |
| title_full | Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation Industry |
| title_fullStr | Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation Industry |
| title_full_unstemmed | Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation Industry |
| title_short | Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation Industry |
| title_sort | analysis of the impact of wiper geometry insert on surface roughness and chips in machining materials used in the aviation industry |
| topic | surface roughness turning chips wiper aviation materials |
| url | http://www.astrj.com/Analysis-of-the-Impact-of-Wiper-Geometry-Insert-on-Surface-Roughness-and-Chips-in,143475,0,2.html |
| work_keys_str_mv | AT piotrszablewski analysisoftheimpactofwipergeometryinsertonsurfaceroughnessandchipsinmachiningmaterialsusedintheaviationindustry AT krzysztofsmak analysisoftheimpactofwipergeometryinsertonsurfaceroughnessandchipsinmachiningmaterialsusedintheaviationindustry AT bartłomiejkrawczyk analysisoftheimpactofwipergeometryinsertonsurfaceroughnessandchipsinmachiningmaterialsusedintheaviationindustry |