JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 60

KNOW-HOW Thermoplastic fabric g…/… Switching easily from metal to composite 3) press stamping; the press must be heated to between 130°C (two sides heated) and 150°C (one side heated) for PA 12, and to 150°C170°C for PPS. The material is stamped at a speed of 5 mm/sec. or faster; the pressure should be maintained for 15 seconds to 2 minutes. The key parameters of the stamping process are heating temperature, transfer time and press temperature control. A typical cycle time ranges between 15 and 120 seconds. In some cases, the part can be remoulded if the result of the previous moulding operation was incorrect. For complex parts, a good alternative is to use a male/female metal mould and a female/male rubber mould (Figure 2). In this case, one face will have the same high degree of finish as the metal surface, while the other will have a lower degree of finish (rubber face). The rubber mould, which should be made of silicone, applies constant pressure on the material during moulding. The rubber part should be moulded with the other metal part using a calibrated Fig. 2: High complexity part (demonstrator) wax sheet for release. Mechanical performance Carbostamp® PA12 Diaphragm moulding This method is a low-cost way of producing simple components that require a minor degree of shaping. The Carbostamp® plies are placed between two barrier films (silicone diaphragm), both of which are then heated to 220°C-240°C for PA 12, or to 310°C-330°C for PPS, and the moulding is formed within this sandwich. The semi-finished article is pressed against the walls of a male or female mould by means of a rubber diaphragm that is pressurised at approximately 5 bar. The pressure can be created by air inside a closed mould or with an autoclave. The component can be demoulded once it has cooled down enough. Cycle times range from 30 to 120 minutes. Carbostamp® PPS Autoclave moulding Autoclave moulding is also a good way to process Carbostamp®, especially for small series or prototyping (1 to 30 parts per day). Even though this technology has longer production cycles than stamping/press moulding, it is faster than usual thermoset resin processes. A typical production cycle is around 45-60 minutes, depending on the thickness of the part and the heating/cooling rate. The following chart summarizes the main characteristics of the different processing methods. Table 1: Process parameters Process type Cycle time Parts/day Advantages Disavantages Stamping 2 min 400 Rapid cycle time Limited size/ complexity Diaphragm 90 min 30 Complex pat in one shot Expensive bagging Autoclave 120 min 10 Simple technique Long time Expensive bagging JEC Composites Magazine / No37 December 2007

JEC COMPOSITES MAGAZINE - Issue #37 - December 2007

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #37 - December 2007

Cover
Edito
CONTENTS
NEWS WORLDWIDE
- Companies
- Agenda of events
- Innovations
BUSINESS
- Trends
- Market survey: China
- Initiative
- Niche markets
- Human capital
FEATURE - BIOCOMPOSITES
- Properties
- Materials
- Applications
USERS’ PLATFORM
- Composites in the world
- Applications
- Successful partners
- Impact analysis
KNOW-HOW
- Thermoplastic fabric
- Control
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - Cover
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 2
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - Edito
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 4
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 5
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - CONTENTS
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 7
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Companies
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 9
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 10
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 11
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Agenda of events
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 13
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Innovations
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 15
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 16
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 17
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Trends
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 19
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Market survey: China
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 21
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 22
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 23
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 24
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 25
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 26
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 27
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Initiative
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 29
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Niche markets
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 31
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Human capital
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 33
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Properties
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 35
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 36
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Materials
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 38
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 39
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 40
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 41
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Applications
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 43
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 44
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 45
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 46
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 47
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 48
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 49
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Composites in the world
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 51
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Applications
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 53
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Successful partners
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 55
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - KNOW-HOW
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 57
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 58
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Thermoplastic fabric
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 60
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 61
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Control
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 63
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 64
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 65
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 66
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 67
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 68
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