JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 47

During the machining process, each sensor emits a voltage signal that is sent:
- directly to the acquisition board
through the CB-68LP terminal block in
the case of thermocouples (generally,
the K-type thermocouples generate
voltages in the tens of mV);
- to the control unit in the case of a
dynamometer;
- to the power supply-accelerometer in
the case of Kistler accelerometers.

Fig. 2: Logic diagramme of the multisensor system

in-process acquisition of signals from
force, temperature and vibration sensors
as a function of process parameters such
as feed, cutting speed and depth of cut.
The system is installed on a three-axis
work centre with a power to the spindle
of 13.5 kW and a maximum speed of
15,000 rpm (Figure 1).

Description of the
multisensor system
The multisensor system developed allows

Fig. 3: Case study: a) fastening system;
b) laminate drilling

in-process measurement of the three
cutting force components (X, Y, Z), the
process temperature and vibrations. It
includes the following components:
- a dynamometer (Kistler 9257BA);
- a K-type thermocouple (TERSID
HF/D-30-KK);
- Kistler accelerometers and a power
supply-accelerometer;
- a control unit (Kistler 5233 A1);
- an acquisition board (National
Instruments PCI-6034E 200 kS/s, 16bit, 16-analog-input multifunction
DAQ and CB-68LP terminal block);
- a PC (for the acquisition and processing of sensor data). Figure 2 shows
the operational logic diagramme of the
multisensor system.

In fact, the voltage signals coming from
the dynamometer, before being sent to
the CB-68LP terminal block, need to
be reduced to a voltage of ±5V and divided on the three separate connectors
corresponding to the three directions
X, Y, Z, because the PCI-6034E acquisition card can receive voltage signals in
the range of 10 volts. Similarly, the signals from the three accelerometers are
sent to the power supply-accelerometer
and then to the card. Finally, the signals
from the K-type thermocouples are
sent directly to the CB-68LP terminal
block.
The PCI-6034E acquisition board is
installed on the PC motherboard and
is connected to the CB-68LP terminal
block through a multi-pin flat cable.
The temperature, power and vibration sensors are connected to this
terminal block. The multisensor data
acquisition (DAQ) system described
is interfaced with a personal computer
with a LabVIEW application installed
for the acquisition of the temperature,

Fig. 4: Typical curve of the temperature trend as a function of time in HSD drilling: a) 8000 rpm, 0.10 mm/rev;
b) 12000 rpm, 0.10 mm/rev.

No102 January - February 2016 / jec

composites magazine 47



Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016

Cover
Edito
Point of view : additive manufacturing
Contents
COMPANY & BUSINESS
DSM Composite Resins to be renamed Aliancys
Aerion and Airbus announce expanded collaboration on supersonic AS2
Agenda of Events
APPLICATIONS
Defence
Sports & leisure
MARKET
Overview
FEATURE AUTOMOTIVE
CFRP
Natural fibres
Prepreg
Thermoplastic
PUR
Phenolic
Process
RESEARCH & DEVELOPMENT
Impact resistance
Trace
TECHNOLOGY & INNOVATIONS
Control
Quality
Automation
Thermoplastic
Nano
Compound
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Cover
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 2
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Edito
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Point of view : additive manufacturing
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 5
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Contents
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 7
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - DSM Composite Resins to be renamed Aliancys
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Aerion and Airbus announce expanded collaboration on supersonic AS2
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 11
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - pub1
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - pub2
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Defence
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Sports & leisure
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 14
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Overview
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 16
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 17
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - CFRP
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 19
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 20
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 21
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 22
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Natural fibres
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 24
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 25
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 26
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Prepreg
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Thermoplastic
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 29
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 30
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - PUR
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Phenolic
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 33
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 34
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Impact resistance
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Process
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 37
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 38
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 39
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 40
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 41
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 42
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Trace
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 44
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 45
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Control
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 47
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 48
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Quality
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 50
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 51
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Automation
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Thermoplastic
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 54
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Nano
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Compound
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - Index
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - In the world
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 59
JEC COMPOSITES MAGAZINE - Issue #102 - January/February 2016 - 60
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