| 1. |
|
|
| 2. |
|
|
| 3. |
- Frisk, Karin, et al.
(författare)
-
Compound materials by PM-HIP
- 2014
-
Ingår i: Powder Metallurgy. - 0032-5899 .- 1743-2901. ; 57:5, s. 341-347
-
Tidskriftsartikel (refereegranskat)abstract
- There are many applications where compound materials can be of interest, for example when different properties are needed in different parts of a component. Compound materials can be produced by hot isostatic pressing (HIP) of powder metallurgical materials. One aspect that should be considered in the design is the quality of the interface between the two different material compositions. Diffusion during HIP can cause formation of brittle phases in the interface or deteriorate properties by diffusion of alloying elements. The present work shows results from a study where different steel types were joined (quench and temper steel/air hardening steel/bearing steel with a tool steel/corrosion resistant martensitic steel). The evaluation was performed by computational predictions and by small scale HIP experiments that were evaluated by microstructure analysis and chemical analysis. © 2014 Institute of Materials, Minerals and Mining.
|
|
| 4. |
|
|
| 5. |
- Petterson, Anders, et al.
(författare)
-
A Bernoulli principle gripper for handling of planar and 3D (food) products
- 2010
-
Ingår i: Industrial robot. - : Emerald. - 0143-991X .- 1758-5791. ; 37:6, s. 518-526
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Purpose - The purpose of this paper is the increase the flexibility of robots used for handling of 3D (food) objects handling by the development and evaluation of a novel 3D Bernoulli gripper. Design/methodology/approach - A new gripper technology have been designed and evaluated. A deformable surface have been used to enable individual product handling. The lift force generated and the force exerted on the product during gripping is measured using a material tester instrument. Various products are tested with the gripper. A experimental/theoretical approach is used to explain the results. Findings - A deformable surface can be used to generate a lift force using the Bernoulli principle on 3D objects. Using a small forming a significant increase in the lift force generated is recorded. Increasing the forming further was shown to have little or even negative effects. The forces exerted on the product during forming was measured to be sufficiently low to avoid product damage. Research limitations/implications - To be able to improve the grippers lift strength a better model and understanding of the flow is needed. Originality/value - A novel Bernoulli gripper for 3D Bernoulli gripping have been designed and evaluated. The gripper enables flexible and delicate handling of various product shapes, 3D as well as 2D. Increased utilization of robots in the food industry can be gained. © Emerald Group Publishing Limited [ISSN 0143-991X].
|
|
| 6. |
|
|
| 7. |
- Skorodko, T., et al.
(författare)
-
THE pp -> pp pi(0)pi(0) REACTION AND ITS LIMITING CASE, FUSION TO QUASI-BOUND He-2, IN SEARCH OF THE ABC EFFECT
- 2011
-
Ingår i: International Journal of Modern Physics A. - 0217-751X .- 1793-656X. ; 26:3-4, s. 702-704
-
Tidskriftsartikel (refereegranskat)abstract
- The pi(0)pi(0) production in pp-collisions has been investigated in exclusive and kinematically complete measurements from threshold up to T-p = 1.4 GeV. For incident energies T-p > 1 GeV, i.e. in the region beyond the Roper excitation, the Delta Delta excitation process takes over. The data are well explained by the t-channel Delta Delta process dominated by pion exchange. There is no low-mass enhancement (ABC effect) in the pi(0)pi(0)-invariant mass distribution beyond that given by the conventional t-channel Delta Delta process. This is also true for the limiting case, where the protons are in the quasi-bound He-2 state.
|
|
