Question

bj: printer characteristics
use the information below to answer the question.
the binder jetting (bj) printer is a combination of the sls machine and the material jetting machine. it has a powder bed, but it doesnt have a heat source. the print is made using a binding agent.
bin packing
like sls printing, there is a powder bin. the full capacity of the build volume can be utilized to do low - to medium - run productions of 50 to 100 pieces.
benefits

• since there is no heat source, there is no tension between hot and cold spots, which can lead to warping or delamination.
• more organic and complex geometry can be created because it doesnt require support materials.
• prints can be created faster because there is no time spent on removing support structures.

limitations

• the part is not that strong. however, bronze can be infused, which improves the strength.

which of the following is a benefit of the binder jetting (bj) process?
prints can be created faster.
prints do not require post - processing.
prints do not require heat.
prints are stronger and more structural.

Explanation:

The text mentions that since the Binder Jetting (BJ) process has no heat source, there is no tension between hot and cold spots which can cause warping or delamination. Also, prints can be created faster as there is no time spent on removing support structures. Prints do require post - processing (as binder can be infused to improve strength), and the prints are not inherently stronger without post - processing. The key benefit among the options given is that prints do not require heat as there is no heat source in the process.

Answer:

Prints do not require heat.