(220527) -- XINMI, 27. Mai 2022 (Xinhua) -- Cheng Yucais Lehrling Li Jinghang passt am 24. Mai 2022 in Chengs Werkstatt in Xinmi, der zentralchinesischen Provinz Henan, die Guillochiermaschine an. Guilloche ist eine dekorative Technik, bei der ein präzises, kompliziertes und sich wiederholendes Muster mechanisch durch Drehen des Motors in ein Material eingraviert wird. Die Technik verwendet eine Maschine, die von der Zartheit der Hand des Handwerkers gesteuert wird. Als ein wichtiger Prozess bei der Herstellung überlegener Uhren und Schmuck, wird die Kunst heute von selten wenigen Menschen gemeistert. Cheng Yucai, geboren 1978, lernte Guilloche 2013 kennen

• Bildanbieter: Xinhua / Alamy Stock Foto
• Bild-ID: 2JA3WRJ
• Dateigröße: 50 MB (1,2 MB Komprimierter Download)
• Freigaben (Releases): Model - nein | Eigentum - nein
• Format: 5000 x 3498 px | 42,3 x 29,6 cm | 16,7 x 11,7 inches | 300dpi
• Aufnahmedatum: 24. Mai 2022
• Fotograf: Xinhua

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(220527) -- XINMI, May 27, 2022 (Xinhua) -- Cheng Yucai's apprentice Li Jinghang adjusts the Guilloche machine at Cheng's workshop in Xinmi City, central China's Henan Province, on May 24, 2022. Guilloche is a decorative technique in which a precise, intricate and repetitive pattern is mechanically engraved into a material via engine turning. The technique uses a machine controlled by the delicacy of the hand of craftsman. As an important process in making superior watch and jewelry, the art is now mastered by rarely few people. Cheng Yucai, born in 1978, got to know Guilloche in 2013 when he saw a cigarette case decorated with the technique. He was attracted by the delicacy and decided to devote himself into the art. In 2015, he resigned from his work in a silverwork factory and began his career in Guilloche. After countless failures and costs of materials, Cheng finally created an integrated Guilloche machine, which was granted with the country's patent of invention in 2017. His skills also amazed professional judges during the first national vocational skills competition in 2020. Nowadays, Cheng's craft has been widely recognized by foreign customers, especially in France and Switzerland, who often book custom-made Guilloche designs from him. Cheng Yucai's workshop, which he names "Sanloutang" and is located in a kiln of Xinmi City of central China's Henan, is simple and crude but quiet enough for him to focus on the art. He moved to the vocational education center of Xinmi after the kiln was flooded by rainfall last summer, waiting for the fix of the workshop. Guilloche requires delicacy of the craftsman, which includes a dozen processes such as flattening, underlining and carving. The precision is accurate to twentieth of the width of a hair. A simple Guilloche pattern costs seven to eight hours to make with 70, 000 to 80, 000 times turning of manual operation, while a complex one dozens of hours with more than 100, 000 times turning. Any tiny mistake woul

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