Design and manufacturing of cranioplasty implants by 3-axis cnc milling

2002 ◽  
Vol 10 (5) ◽  
pp. 413-423 ◽  
Author(s):  
L.C. Hieu ◽  
E. Bohez ◽  
J. Vander Sloten ◽  
P. Oris ◽  
H.N. Phien ◽  
...  
Author(s):  
H. Wu ◽  
D. Xue ◽  
J. Harder ◽  
J. L. Ronsky ◽  
P. Poncet ◽  
...  

A new method to design and manufacture customized braces is introduced in this research for scoliosis treatment. In this method, a geometric model of a scoliosis patient’s torso is achieved using a laser optical scanning device. The brace geometry is obtained by generating the offset geometry of the torso’s surface, selecting vertical boundaries, removing holes and noise data, creating symmetrical geometry, and modifying the geometry near the pelvis curves. Manufacturing of the brace is conducted by producing a male die with a sculptured surface using a custom-designed 5-axis CNC milling machine and creating the plastic brace using a thermoforming process.


2012 ◽  
Vol 150 ◽  
pp. 235-239
Author(s):  
Jin Gui Wan ◽  
Xi Ping Wang ◽  
Wei Ding ◽  
Wei Li

Based on UG II CAD/CAM system, the CNC machining process and technology of a toy car cover is studied in this paper. It includes three-dimension (3D) modeling, machining programming, fixture design and manufacturing, process parameter setting, tool path planning and editing, NC code generation (post processing), simulation processing, and practical machining. The part is manufactured successfully in a 3-axis CNC milling machine. It has a desirable shape and high accuracy. The result shows that, with the powerful CAD/CAM capabilities of UG, the integrated design and manufacturing of complex curved surface shell part is easy to implement, the process is reasonable and efficient, and the NC program is reliable. This exmple fully reflects the advantages of UG CAD/CAM integration technology. The method and technology introduced in this paper can provide valuable reference for processing of similar parts.


2014 ◽  
Vol 1 (1) ◽  
pp. 365-368
Author(s):  
Ionela Magdalena Rotaru ◽  
Sorin Borza

Abstractthe paper continues the research started in the paper “Conception and fabrication using knowledge management principles”. The theoretical guidelines found in the mentioned paper crystallises at a practical level in an original product – a software solution. The proposed solution has as a central element notion concerning the design and manufacturing of straight axes in the automotive industry. The application field for the proposed example regards the educational area; the software guides the user by theoretical concepts, examples, problems through practical aspects concerning the design and manufacturing of a part belonging to the axes family specific to the automotive industry. The software was developed using the Access work environment.


2021 ◽  
Author(s):  
Cole Dunning ◽  
Rodrigo Cervantes ◽  
Lorena Velasquez ◽  
Anastasia Western ◽  
Michelle Sherman ◽  
...  

2016 ◽  
Vol 10 (2) ◽  
pp. 162-171
Author(s):  
Hafid Hafid ◽  
Tatang Sutisna

The design and manufacturing of the rotary table with the specification Ø 170 mm (6 inches) for CNC machine 4 axis has been done. The objective of manufacturing a rotary table is to increase the efficiency of CNC machine Hardford 4 axis to be above 80% in line machining center CV. IM’s workshop. The engineering methods was taken, consist of: working preparation, manufacturing of working drawing, engineering process, the manufacturing and testing. The prototype has been tested and operated, the resulting of increasing productivity of which were as follows: the process of assembling was increased to be 3 time ( before 1 time) and processing time for a specific case reduced from 5 hours to 3 hours, number of operators for the case of assembling the rotary reduced to 1 person (before 4 persons), safety and security become to be better. The results show increased efficiency of CNC machine Hardford, from under 50% to be above 80%. Based on the economical analysis obtained by the cost of good sold (C.G.S) of the rotary table is IDR 34.060.000. The results presented in this paper is expected to be case study for developing a business of the metal and engineering SMEs domestic to the effort of improving efficiency, quality, productivity and competitiveness in global market.ABSTRAKPerancangan dan pembuatan alat bantu meja putar (rotary table) dengan spesifikasi teknis Ø 170 mm (6 inci) untuk mesin CNC 4 axis telah dilakukan. Tujuan pembuatan rotary table adalah untuk meningkatkan efisiensi mesin CNC Hardford 4 axis di atas 80% pada line machining center Bengkel CV. IM. Metode rancang bangun yang dilakukan, meliputi: persiapan kerja, pembuatan gambar kerja, proses engineering, pembuatan dan uji coba. Prototip tersebut telah diuji coba dan dioperasikan dengan hasil peningkatan produktivitas sebagai berikut: proses pengerjaan bongkar pasang meningkat menjadi 3 kali (sebelumnya 1 kali) dan waktu pengerjaan untuk kasus tertentu berkurang dari 5 jam menjadi 3 jam, jumlah operator untuk kasus bongkar pasang rotary berkurang menjadi 1 orang (sebelumnya 4 orang), keselamatan kerja dan keamanan menjadi lebih baik. Hasil peningkatan berupa efisiensi mesin CNC Hardford 4 axis dari sebelumnya di bawah 50% menjadi di atas 80%. Berdasarkan hasil perhitungan analisis ekonomi diperoleh harga pokok produksi (HPP) alat bantu meja putar adalah sebesar Rp. 34.060.000. Bahasan ini diharapkan menjadi contoh kasus bagi pengembangan usaha IKM logam dan mesin dalam negeri untuk meningkatkan efisiensi, mutu, produktivitas dan keunggulan daya saing di pasar global.Kata kunci: alat bantu meja putar, mesin CNC, harga pokok produksi


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