圆明亮琢型的星刻面和上、下腰刻面倾角数值计算

详细信息

Numerical Method on Inclination of Star Facet,Upper and Lower Girdle Facets of Round Brilliant Cut

摘要: 精确计算星刻面、上腰刻面和下腰刻面的倾角是圆明亮琢型宝石加工的重要问题。通过几何分析与计算,分析了冠角、台宽比、星刻面长度比、下腰刻面长度比和亭角对星刻面倾角、上腰刻面倾角和下腰刻面倾角的影响,获得了较精确的星刻面倾角、上腰刻面倾角和下腰刻面倾角的线性拟合计算方法及相应的参数。
- 钻石 /
- 加工 /
- 圆明亮琢型 /
- 星刻面 /
- 上腰刻面 /
- 下腰刻面
Abstract: It is quite important for calculating precisely inclination of star facet,upper girdle and lower girdle facets during gem processing. The numerical relations between the inclination of star facet,upper and lower girdle facets and cut parameters including crown angle,table proportion,star facet length proportion,lower girdle facet length proportion and pavilion angle are analysed and calculated by the geometry method,abtaining the precise calculating methods and parameters.
- diamond /
- cut /
- round brilliant cut /
- star facet /
- upper girdle facet /
- lower girdle facet

[1]	袁心强.钻石的分级原理与方法[M].武汉:中国地质大学(武汉)出版社,1998.88—92.
[2]	Troy Blodgett,Al Gilbertson,Ron Geurts,et al.Painting and digging out:Variations on standard brillianteering of round brilliant diamonds[J].Rapaport Diamond Report,2005,(3):239—245.
[3]	石斌,袁心强.刷磨和剔磨的工艺参数计算[J].宝石和宝石学杂志,2010,12(2):32—34.
[4]	周汉利.宝石琢型设计及加工工艺学[M].武汉:中国地质大学(武汉)出版社,2007.42—49.
[5]	王慧峰,蒋广福.宝石加工学[M].北京:地质出版社,1992.
[6]	李庆扬,王能超,易大义.数值分析[M].武汉:华中理工大学出版社,1999.19—30.