Deburring of small parts in hard-to-reach places by ultrasonic action

2013 ◽  
Author(s):  
Vladimir N. Khmelev ◽  
Sergey N. Tsyganok ◽  
Andrey A. Romashkin ◽  
Gennadiy A. Titov
Keyword(s):  
Ultrasonic Action ◽  
Small Parts

CANNON-MUSKEGON 8620

Alloy Digest ◽  
1973 ◽  
Vol 22 (12) ◽  
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Alloy Steel ◽  
Investment Casting ◽  
Silicon Content ◽  
Heat Treating ◽  
Low Carbon ◽  
Heat Treated ◽  
Casting Industry ◽  
Small Parts

Abstract CANNON-MUSKEGON 8620 is a low-carbon triple-alloy steel capable of being carburized for wear resistance or heat treated for toughness. This steel is suitable for many engineering applications, and is used in large quantities in the investment casting industry for small parts. A higher silicon content is permissible in this steel than in AISI 8620 (wrought) alloy steel. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: SA-299. Producer or source: Cannon-Muskegon Corporation.

scholarly journals Research on aerodynamic characteristics of two-stage axial micro air turbine spindle for small parts machining

2020 ◽  
Vol 12 (12) ◽  
pp. 168781402098437
Author(s):  
Liu Jiang ◽  
Guo Zhiping ◽  
Miao Shujing ◽  
He Xiangxin ◽  
Zhu Xinyu
Keyword(s):  
High Speed ◽  
Aerodynamic Characteristics ◽  
Maximum Efficiency ◽  
Two Stage ◽  
Output Torque ◽  
Air Turbine ◽  
Solid Foundation ◽  
Computational Fluid Dynamics Cfd ◽  
Micro Machine ◽  
Small Parts

In order to meet the requirements of output torque, efficiency and compact shape of micro-spindles for small parts machining, a two-stage axial micro air turbine spindle with an axial inlet and outlet is proposed. Based on the k-ω turbulence model of SST, the flow field and operation characteristics of the two-stage axial micro air turbine spindle were studied using computational fluid dynamics (CFD) combined with an experimental study. We obtained the air turbine spindle under different working conditions of the loss and torque characteristics. When the inlet pressure was 300 KPa, the output speed of the two-stage turbine was 100,000 rpm, 9% higher than that of a single-stage turbine output torque. The total torque reached 6.39 N·mm, and the maximum efficiency of the turbine and the spindle were 42.2% and 32.3%, respectively. Through the research on the innovative structure of the two-stage axial micro air turbine spindle, the overall performance of the principle prototype has been significantly improved and the problems of insufficient output torque and low working efficiency in high-speed micro-machining can be solved practically, which laid a solid foundation for improving the machining efficiency of small parts and reducing the size of micro machine tool.

Use of neutron generators for monitoring the increase in petroleum recovery from wells due to ultrasonic action

Atomic Energy ◽  
2004 ◽  
Vol 97 (3) ◽  
pp. 653-656 ◽  
Author(s):  
Yu. F. Zhuikov ◽  
V. N. Pryakhin ◽  
A. E. Shikanov ◽  
E. A. Shikanov
Keyword(s):  
Ultrasonic Action ◽  
Neutron Generators

Dermatography: 10 Years of Applications as an Adjuvant Treatment after Nipple and Areola Reconstruction

2000 ◽  
Vol 17 (1) ◽  
pp. 23-26 ◽  
Author(s):  
Eddy M. Van Der Velden ◽  
Brigitte H. I. M. Drost ◽  
Otto E. Ijsselmuiden ◽  
Abraham M. Baruchin
Keyword(s):  
Breast Cancer ◽  
Radiation Therapy ◽  
Breast Surgery ◽  
Total Resection ◽  
Refined Method ◽  
Aesthetic Results ◽  
The Aesthetic ◽  
Small Parts ◽  
Bilateral Reconstruction ◽  
Over Time

Introduction: Nipple and areola reconstruction have recently become in demand because more women are having breast surgery because of breast cancer diagnoses. Many methods for reconstructing the nipple and areola of the breast have been described and several treatment methods have been developed to improve the aesthetic results. The purpose of this paper is to describe one method, dermatography, a refined method of medical tattooing and the results obtained from this method. Materials and Methods: Over 10 years, 112 patients were treated with dermatography for nipple and areola reconstructions. Of these, 89 patients had received a unilateral reconstruction and 23 received a bilateral reconstruction. The first dermatographic treatment was given 8–12 months after the last intervention by the plastic surgeon. The average session lasted 45 minutes. Results were assessed by means of a short questionnaire. Results over time were evaluated by comparing pictures from previous sessions. Dermatography uses a modified tattooing called a dermainjector machine. Keloidectomy is the technique used to reduce keloid in postoperative scars. The needles of the dermainjector are positioned at an angle of 70–90 degrees to the scar surface. Small parts of the keloid are removed. At the same time pigmentation is performed. Results: Patients evaluated their results as satisfactory. Pigmentation over 5 years was judged to be stable with minor loss of pigment in only 6% of the patients, all of whom received radiation therapy for their cancer. Dermatography was well tolerated by the patients. None of the patients required local anesthesia. Discussion: Patients receiving total resection of their breasts are getting younger and perceiving the results as a severe deformation of their bodies. Results of reconstruction are judged very critically. We found that our patients considered the general visual aspect of the nipple and areola shape more important, and most of the patients did not consider reconstruction of the actual nipple mound to be necessary.

Percutaneous Superselective Coil-Embolization of Intrarenal Arteriovenous Fistulas

1996 ◽  
Vol 37 (3P2) ◽  
pp. 539-541 ◽  
Author(s):  
H. Husstedt ◽  
A. Chavan ◽  
F. Ghadban ◽  
A. Leppert ◽  
M. Galanski
Keyword(s):  
Coil Embolization ◽  
Av Fistula ◽  
Arteriovenous Fistulas ◽  
Percutaneous Catheter ◽  
Coil Occlusion ◽  
Av Fistulas ◽  
Small Parts

Purpose: To evaluate the role of percutaneous transcatheter coil-occlusion in the management of uncontrollable postoperative hematuria due to iatrogenic arteriovenous (AV) fistula. Material and Methods: In 2 patients, AV fistulas were occluded with percutaneous catheter-guided superselective coil embolization. Results: In both cases, occlusion of the AV fistulas was successful. Only small parts (less than 10%) of the parenchyma had to be sacrificed. No hypertension occurred. Conclusion: Percutaneous coil embolization is a useful alternative to surgery in cases of postoperative AV fistulas. Hematuria can be effectively controlled without resulting hypertension.

Zuführung kleiner Bauteile über Schwingförderer*/Supply of small parts with vibratory feeders

2015 ◽  
Vol 105 (09) ◽  
pp. 627-632
Author(s):  
M. Krause ◽  
J. Bauer ◽  
J. Fleischer
Keyword(s):  
Micro Assembly ◽  
Increase In Productivity ◽  
Small Parts

Die effiziente Teilezuführung ist eine herausfordernde Handhabungsoperation in der automatisierten Mikromontage. Für die Zuführung von kleinen Bauteilen unterschiedlichster Art ist vor allem das Prinzip der Gleitförderung eine interessante Alternative. Um mit diesem Prinzip eine Produktivitätssteigerung zu erreichen, ist ein Ansatz notwendig, mit dem sich die Bauteilbewegung vorhersagen lässt.   The efficient supply of parts is a challenging manipulation operation in micro-assembly. When feeding many different small parts, the principle of sliding conveyance is an interesting option. To ensure an increase in productivity based on the principle of sliding conveyance, an approach is needed to predict the motion of parts.

Danger of Styrofoam Cups

PEDIATRICS ◽  
1975 ◽  
Vol 55 (5) ◽  
pp. 746-747
Author(s):  
Reuben Reiman
Keyword(s):  
Accident Prevention ◽  
Infants And Children ◽  
Small Parts

Accident prevention has commanded the increasingten attention of the pediatrician in recent years. One of the more obvious precautions has been to protect infants and children from toys or other objects which have sharp or small parts which might become dislodged and subsequently swallowed or aspirated. Now, I wish to direct attention to another possible peril. Recently, believing it to be safe, a mother in my practice gave her 8-month-old infant a Styrofoam cup with which to play.

The perfect Crème Brûlée v2

2022 ◽  
Author(s):  
René Bernard
Keyword(s):  
Smooth Surface ◽  
Quality Criteria ◽  
The Other ◽  
Small Parts ◽  
To Receive ◽  
Added Salt

Crème Brûlée has a short ingredient list and does not require specific skills to make, but to get it right, several steps need to be carefully executed to receive the creme, not a pudding that, that is still grainy or liquid. With a caramel crust that offers a perfectly smooth surface you can break with your spoon like ice when you tap on it. Most Crème Brûlées offer one or the other but to get everything right, requires attention to details in the making. Expected results and quality criteria: 1. Crème Brûlée is served refrigerator-cold and 3-5 min after the blow-torching the sugar. Only then you have a smooth and stable caramel surface that you can crack with your spoon. Ideally, the caramel is still pleasantly warm. 2. The creme needs to be uniform and intense yellow, no gristle-like residues in it to disturb the perfect mouth feeling. While the surface is solid, the creamy consistency remains. 3. Taste: The perfect interplay between caramel and vanilla flavors (if small parts of the crust are slightly burnt -compare image - you add just a few bitter notes that make it more interesting. The added salt intensifies the vanilla flavor. 4. The crust needs to be uniform and requires a soon to be broken up in small pieces.

Allocating space in a forward pick area of a distribution center for small parts

2008 ◽  
Vol 40 (11) ◽  
pp. 1046-1053 ◽  
Author(s):  
John J. Bartholdi ◽  
Steven T. Hackman
Keyword(s):  
Distribution Center ◽  
Small Parts
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